Aldehydene
乙炔
🗣️ 情景例句
He takes things too seriously.
他看待事情太认真了。
A wilful fault has no excuse and deserves no pardon.
不能宽恕故意犯下的错误。
I have just moved to a house in Bridge Street.
我刚刚搬进了大桥街的一所房子。