下午用英文怎么表達？?怎么寫?

　　The afternoon heat was suffocating.

　　下午熱得讓人透不過氣來。

　　In the afternoon they went shopping.

　　他們下午去購物了。

　　The baby always has an afternoon nap.

　　嬰兒午后總要睡一會兒。