Leucocompounds
无色母体
🗣️ 情景例句
First, we have to decide where to live.
首先 ，我们得决定住在哪里。
Would you tell Mr. Green that I called?
你能告诉格林先生我给他打了个电话吗？
I'm not sure how this works.
我不懂这是如何操作的。