Fluoroethane
[化] 氟代乙烷; 乙基氟
🗣️ 情景例句
It's two words.
两个字。
Short acquaintance brings repentance.
浅交生后悔。
Over the years, one may well become a authority on one's hobby and will very probably be asked to give informal talks to little gatherings and then,
一人积了多年经验会成为自己这种爱好的权威，很可能应邀在小型集会上作非正式的讲话。