Trifluoride
三氟化物
🗣️ 情景例句
His books exposed people to new ideas.
他的书使人们接触了新思潮。
It seems he's a millionaire.
看起来他好像是百万富翁。
He can't write very much on a card, Mum.
在明信片上他写不了很多，妈妈。