Hexandial
己二醛
🗣️ 情景例句
I am, too. But didn't you just get on?
我也是。可是，你不是刚上车的吗？
We can't fly our kites any more because the wind has stopped.
由于风静止，所以已经没法放风筝了。
I beg your pardon?
请您再说一遍（我没有听清）。