在周四的下午用英文怎么表达？

　　I saw her one afternoon last week.

　　我在上周的一个下午见到了她。

　　The afternoon heat was suffocating.

　　下午热得让人透不过气来。

　　In the afternoon they went shopping.

　　他们下午去购物了。

　　The baby always has an afternoon nap.

　　婴儿午后总要睡一会儿。