Dibutoxy
二丁氧基
🗣️ 情景例句
No such thing as too many at an opening.
展览开幕怎么会嫌人太多呢。
Every man is the son of his own works.
种瓜得瓜，种豆得豆。
Not that long ago!I'm not more than twenty-nine myself.
不，没有那么久。我自己现在还没29岁呢。