Trifluoride
三氟化物
🗣️ 情景例句
That has nothing to do with what I'm talking about.
那跟我说的事情没有关系。
He that is angry is seldom at ease.
怒者寡宁。
Looking at his watch, he saw that it was one o'clock, but the bell struck thirteen times before it stopped.
他一看表，才1点钟，可是那钟一边敲了13下才停。