...助絮凝剂 flocculant aid 努力 am at pains ;are at pains ;is at pains ;made an attempt at ;made an attempt to ;make an attempt at ;make an attempt to ;make an effort to ;make ef...
双语例句
1
We areatpains to learn English well.
我们正在努力学好英语。
2
So they strive to earn money, and areatpains to collect all kinds of books.
为此他们努力赚钱，用心收集各种图书。
3
But its exiled leaders, as elsewhere in the Middle East, areatpains to promote a non-violent vision.