You must give the horse a thorough cleaning every day.

你必须每天给马彻底清洗。

Spring cleaning is a thorough cleaning inside and out.

春季大扫除是从里到外的彻底清洁。

I'm sure a thorough cleaning will make all the difference.

我相信彻底清洁会让一切变得不同。

Either way, it seems the old lore that a dandruffy scalp just needs a thorough " cleaning" might be a little flaky.

不管怎样，头屑头皮需要彻底“清洁”的古老说法似乎有点离谱。

At once the boys set about giving the silkworm house-a tiny place with broad shelves along two walls-a thorough cleaning, whitewashing it inside and out.

孩子们立刻着手给蚕舍——一个两面墙上都有宽阔架子的小地方——彻底打扫，把它里里外外刷洗干净。