afternoon词根词缀？

afternoon词根词缀？

afternoon 词根是noon，词缀是after

例句

1.

Our system should be up by this afternoon.

到今天下午，我们的电脑系统应该运行起来了。

2.

Where were you on the afternoon of May 21?

5月21日下午你在哪里？

3.

I saw her one afternoon last week.

我在上周的1个下午见到了她。