Dimethylsilane
二甲(基)甲硅烷
🗣️ 情景例句
Why are you in such a good mood?
你怎么心情这么好？
He has never been out of China, so he is very excited about liveing abroad.
他以前从未出过国，因此对出国很兴奋。
Fifteen minutes passed and then, at five to twelve, the clock stopped.
15分钟过去了，而就在11点55分时，大钟停了。