2 the period of time between when it gets light in the morning and when it gets dark 白天,日间; C,U
NOT NIGHT
非夜间
3 the time during the day when you are awake and active Do not say . Say . 不要说 all the day,而要说 all day。 C usually singular 一般用单数
WHEN YOU ARE AWAKE
醒着时
8 a successful period of time in someone’s life or in something’s existence 某人/某物的风光时候
sb’s/sth’s day