Ecoengineering
[化] 生态工程
🗣️ 情景例句
Am I getting a good deal on this?
这买这个值吗？
I asked him to check it for me, but he wouldn't.
我请他帮我检查，但是他不肯。
Let us do it by ourselves，will you?
我们自己做这件事，可以吗？