Etheride
酰卤化物
🗣️ 情景例句
What happened?
发生了什么事？
Man is a god or a devil to his neighbour.
一个人对邻居来说，不是上帝，便是魔鬼。
However, there are undoubtedly some wrong ways,
然而，却毫无疑问地有几种错误的方法。