Cocatalyst
助催化剂
🗣️ 情景例句
Mind your manners.
注意你的行为举止。
How long will ti take you to finish the work?
你要花多长时间才能完成那项工作？
We're going to a really nice place down by the river. It's a good place for a camp and there's plenty of shade under the trees.
我们要沿河去一个很好玩的地方。那是个很好的宿营地，有很多树阴凉。