Alkylide
烃基化物
🗣️ 情景例句
You look much younger than ... years old.
你看起来比……年轻多啦。
A man may lead a horse to the water, but he cannot make him drink.
牵马到河易，强马饮水难。
We had to climb over some rocks and it started to rain.
我们不得不爬过一些岩石，这时开始下起雨。