Fluorobutane
丁基氟, 1-氟代丁烷
🗣️ 情景例句
I really appreciate
我真的很感谢
To err is human; to forgive, divine.
人难免错误，宽恕别人是神圣的。
A foreigner living in a Swedish village wrote to the Ombudsman complaining that he had been ill-treated by the police, simply because he was a foreigner.
一个住在瑞典乡村的外国人写信给司法特派员，抱怨说他受到警察的虐待，原因就是因为他是个外国人。