Silicoethane
乙硅烷
🗣️ 情景例句
First, we have to decide where to live.
首先 ，我们得决定住在哪里。
I could swear I've been here before.
我敢发誓我曾经来过这儿。
Excuse me, are you from England?
对不起，问一下，你是英国人吗？