全部

1·Define the plates to be unbreakable. Open the door savely.

把它定义成不可打碎的，就可以安全打开门了。

2·We shall on one hand control the rubbish which has been proceeded by factory, and on other hand construct a new method of using fresh water savely and recycle the waste water.

我们应该控制由工厂排放的废物，并且形成新的更节省的使用淡水和废水再循环的方法。