在下午的英文翻译为：in the afternoon。

afternoon：

n.下午(中午12点至下午6点左右)；

复数： afternoons

You have to make a decision before five o'clock in the afternoon.

你必须在下午五点以前做出决定。

B: Well, we could leave there about four in the afternoon.

嗯，我们可以在下午4点左右离开那里。

Can you see to it that the fax goes this afternoon?

你保证今天下午就把传真发出去，行吗？

This afternoon's sunshine could nudge the temperature above freezing.

今天下午的阳光可使温度达到冰点以上。