Monogene
单成因的
🗣️ 情景例句
I think we should move, I don't feel safe in this neighborhood anymore.
我想我们应该搬家，在这样的邻里关系中我感到不安全。
Why are you so much taller than I?
你为什么个子比我高那么多？
How long did it take you to accomplish this complicated job?
你花了多久才作完这复杂的活儿？