Japanese Sentences with English Translations - Sentences [一喜一憂]

My father's condition seems to improve one moment, but the next moment he sinks again.

Somebody who wavers between hope and fear over superficial things should not be appointed to a management position.

He is now glad, now sad at the progress of the game.

I can't keep this up. It's an emotional roller coaster around here and all we have to do is look at the boss's face to know whether everybody is going to be happy or sad.

He fluctuated between hope and despair.