1、I need to freshen up before meeting my friends.
我需要先整理一下再去见我的朋友们。

2、Can you freshen the air in the room by opening the window?
你能通过打开窗户让房间里的空气变新鲜吗？

3、After a long day at work, I like to take a shower to freshen myself up.
工作了一整天之后，我喜欢洗个澡来恢复精神。

4、Please freshen the tablecloth before setting the table for dinner.
请在摆餐桌之前先将桌布扔进洗衣机洗一洗。