✅ 同义词
🗣️ 情景例句
So, what were you two talking about?
你们俩刚才谈什么了？
I know the boy whose father is a mailman.
我知道那个男孩的父亲是邮差。
The fire service began to wonder whether a gas might have caused the fire.
消防部门开始怀疑有一种气体可能会导致火灾。