So far, they have cleaned over 50 tons of waste.
到目前为止，他们已经清理了50多吨垃圾。
我打扫了所有的房间。
The classroom looks tidy. We have cleaned it.
教室看起来很整洁。我们已经打扫了。
So you are the one to have cleaned all these rooms.
原来这些房间都是你打扫的。
I have cleaned the blackboard.
我把黑板擦了。
我已经洗完了衣服。
I have cleaned my room and cooked.
我已经打扫完房间和做完饭了。
She seemed to have cleaned the room.
她似乎已打扫过房间了。
The room looks tidy, we have cleaned it.
房间看起来很整洁，我们已经打扫了。
By the time you get home I will have cleaned the house from top to bottom.
你到家之前我将把房子彻底打扫一遍。
Be sure that you have cleaned the surfaces of both the object being measured and the level.
要确信，你已经把所测物体的表面和水平仪的表面清理好了。
The New Year is really near, people have cleaned up the house and have started preparing the food.
新年临近，人们已经清扫了屋子，并且开始准备食物。
I have cleaned toilets, mopped floors, taught swim lessons, lifeguarded and everything in between I was just supposed to be in charge of finance!
打扫厕所、拖地、教课、救生等等这一切我都做过我过去只是负责财务！
We have cleaned the air, but polluted the soul; we split the atom, but not our prejudice. We write more, but learn less; we plan more, but accomplish less.
我们清洁了空气，却污染了灵魂；我们分离了原子，却无法驱除我们的偏见；我们写的更多，学到的却更少；我们的计划更多，完成的却更少。
We have cleaned the air, but polluted the soul; we split the atom, but not our prejudice. We write more, but learn less; we plan more, but accomplish less.
我们清洁了空气，却污染了灵魂；我们分离了原子，却无法驱除我们的偏见；我们写的更多，学到的却更少；我们的计划更多，完成的却更少。
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