"Seven o'clock in the evening" 说在英语中为 "seven o'clock at night"。
关于 "o'clock" 的来源："o'clock" 是 "of the clock" 的缩写，意思是“钟的”，因此表示“时钟上的整点”。
以下是一些例句：
I'll see you at seven o'clock tonight.
(今晚七点钟见)
The movie starts at seven o'clock.
(电影在七点钟开始)
We need to be at the airport by seven o'clock tonight.
(我们需要在今晚七点前到达机场)