Freons
(freon 的复数) n. 氟利昂\\n[计] 氟里昂
🗣️ 情景例句
will read a poem by Robert Frost.
要朗读Robert Frost作的一首诗。
His visit was well timed.
他的访问正合时宜。
Yes.Look out of the window.
是的。你看看窗外。