Pentamethyl
五甲基
🗣️ 情景例句
What do you do for a living?
你以什么为生？
Don't you think we should add a sentence here like this?
难道你不觉得我们应该在这儿加上一句话？
At the moment in my country there are very few such schools.
目前在我国这类学校太少了。