日間的英文：
in the daytime; during the day; by day/night
n. 白天，日间
- He slept badly at night and couldn't concentrate in class at daytime
他夜里睡不好,白天上课时思想开小差。 - Bats sleep in the daytime and come out to hunt for food at night.
- Daytime television tended to remind her too forcefully of her own situation.
日间电视节目往往使她深刻地认识到自身的境况。
prep. 在…整个期间；在…期间的某个时候
- during one's minority
未成年期间 - Drinking is not advised during pregnancy.
建议妊娠期不要饮酒。 - The capture was conducted during midnight.
俘虏行动在午夜举行。
n. 一天；白昼，白天；工作日；时代，时期
- Things go on day by day.
事情逐日进行着。 - Day by day the situation is improving.
情况在一天天地好转。 - Like this, day after day.
就这样，日复一日。