化整的英文：
n. rounding

175.8 can be rounded down to 176.
175.8(四舍五人后)可以化整为176。

There is a round circuit.
这有一个环型赛车场。

The water wheel goes round and round.
水车转个不停。

When you squeeze the trigger, a round or rounds of ammunition are fired.
当你紧按板机，一发或几发子弹就射出了。

The revolving sign was spinning round and round in the wind.
旋转的标志牌在风中打著旋儿

Round and round—to make a circle and start from the beginning
周而复始