Monosulphide
一硫化物
🗣️ 情景例句
How ofter have met with our competitors?
你多久遭遇我们的竞争对手一次？
Wise men learn by other men's mistakes;fools by their own.
聪明人从旁人的错误中吸取教训，愚笨人则从自身的错误中吸取教训。
Greetings, learned judge! I do not envy you your job. This is a most troublesome case.
您好，博学的法官！我并不羡慕您的职业。这是一个最麻烦的案子。