我以前以为纸巾越多，家里就越干净。

I used to think more paper towels meant a cleaner home.

这里的环境很好，干净而且相对安静。

The environment here is good—clean and relatively quiet.

蛇也非常干净和安静，它们很少打扰人类。

Snakes are also very clean and quiet and they seldom trouble humans.

他们一起建造了一所更干净、更漂亮的学校。

They have made a cleaner and more beautiful school all together.

利兹居民希望居住在干净、有吸引力的街区。

Leeds residents want to live in clean and attractive neighbourhoods.

每个人都应该在保持干净整洁方面发挥作用。

Everyone should play a part in keeping it clean and tidy.

你有责任把自己的实验室设备洗干净并放好。

You are responsible for washing out your own lab equipment and putting it away.

空气净化机为骑自行车的人提供干净的空气。

The air-cleaning machine offers clean air to the biker.

嗯，不把家具都清理干净，就不能粉刷墙壁。

Well, we can't paint the walls without clearing all the furniture first.

他工作很努力，经常保持院子干净，没有杂草。

He worked hard and often kept the yard clean without any grass.