Trifluoride
三氟化物
🗣️ 情景例句
Hi. Fill 'er up.
嗨， 把油箱加满。
There was much news in the morning paper today.
今天的晨报上有许多新闻。
No, thank you. Tom.I've already had lunch.
不，汤姆，谢谢。我已经吃过饭了。