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Furigana Show|Add to ▼ Source Totoeba Project
It would be difficult to improve the device when there is no effective catalyst.
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Vocabulary list

yuukou
na adjective, noun
  1. valid; effective
noun
  1. yuko (judo)
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na
particle
  1. don't (prohibitive; used with dictionary form verb)
  2. do (imperative (from なさい); used with -masu stem of verb)
interjection
  1. hey; listen; you
particle
  1. now, ...; well, ...; I tell you!; you know (when seeking confirmation, for emphasis, etc.; used at sentence end)
  2. wow; ooh (used to express admiration, emotionality, etc.; used at sentence end)
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shokubai
noun
  1. catalyst
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ga
particle
  1. indicates sentence subject (occasionally object)
  2. indicates possessive (esp. in literary expressions)
conjunction
  1. but; however; still; and
  2. regardless of; whether (or not) (after the volitional form of a verb)
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nai
i adjective (negative)
  1. nonexistent; not being (there)
  2. unowned; not had; unpossessed
  3. unique
  4. not; impossible; won't happen (as ...ことがない, etc.; indicates negation, inexperience, unnecessariness or impossibility)
auxiliary adjective
  1. not (after the ren'youkei form of an adjective)
  2. to not be; to have not (after the -te form of a verb)
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node
particle
  1. that being the case; because of ...; the reason is ...; given that ...
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sono
pre-noun adjectival
  1. that; the (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener)
  2. part (as in "part two") (preceding a number)
interjection
  1. um ...; er ...; uh ...
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souchi
noun, suru verb
  1. equipment; device; installation; apparatus
noun
  1. stage setting
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wo
particle
  1. indicates direct object of action
  2. indicates subject of causative expression
  3. indicates an area traversed
  4. indicates time (period) over which action takes place
  5. indicates point of departure or separation of action
  6. indicates object of desire, like, hate, etc.
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kairyou
noun, suru verb
  1. improvement; reform
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suru
suru verb (irregular)
  1. to do; to carry out; to perform
  2. to cause to become; to make (into); to turn (into)
  3. to serve as; to act as; to work as
  4. to wear (clothes, a facial expression, etc.)
  5. to judge as being; to view as being; to think of as; to treat as; to use as (as 〜にする,〜とする)
  6. to decide on; to choose (as 〜にする)
suru verb (irregular), intransitive verb
  1. to be sensed (of a smell, noise, etc.) (as 〜がする)
  2. to be (in a state, condition, etc.)
  3. to be worth; to cost
  4. to pass (of time); to elapse
suru verb (irregular), transitive verb
  1. to place, or raise, person A to a post or status B (as AをBにする)
  2. to transform A to B; to make A into B; to exchange A for B (as AをBにする)
  3. to make use of A for B; to view A as B; to handle A as if it were B (as AをBにする)
  4. to feel A about B (as AをBにする)
suffix, suru verb (irregular)
  1. verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs")
auxiliary verb, suru verb (irregular)
  1. creates a humble verb (after a noun prefixed with "o" or "go")
  2. to be just about to; to be just starting to; to try to; to attempt to (as 〜うとする,〜ようとする)
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koto
noun
  1. thing; matter
  2. incident; occurrence; event; something serious; trouble; crisis
  3. circumstances; situation; state of affairs
  4. work; business; affair
  5. after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to
noun, used as a suffix
  1. nominalizing suffix
  2. pretending to ...; playing make-believe ...
noun
  1. alias; also known as; otherwise known as; or (as AことB (A = alias, B = real name))
  2. necessity; need (as 〜ことはない)
  3. you should ...; I advise that you ...; it's important to ... (as 〜ことだ)
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ha
particle
  1. topic marker particle (pronounced わ in modern Japanese)
  2. indicates contrast with another option (stated or unstated)
  3. adds emphasis
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konnan
noun, na adjective
  1. difficulty; hardship; trouble; distress
  2. infeasibility; inability (to carry out)
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dearu

Plain Presumptive Form

dearou
copula, godan verb (irregular)
  1. be; is
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dearou
expression
  1. will; probably; may; I think; surely; I hope; I fear; it seems
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de
particle
  1. at; in (indicates location of action; にて is the formal literary form)
  2. at; when (indicates time of action)
  3. by; with (indicates means of action)
conjunction
  1. and then; so
auxiliary
  1. and; then (indicates continuing action; alternative form of 〜て used for some verb types)
particle
  1. let me tell you; don't you know (at sentence-end; indicates certainty, emphasis, etc.)
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aru

Plain Presumptive Form

arou
godan verb (irregular), intransitive verb
  1. to be; to exist; to live (usu. of inanimate objects)
  2. to have
  3. to be located
  4. to be equipped with
  5. to happen; to come about
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