Chlorinum
[醫] 氯(17號元素)
??? 情景例句
He's not making much progress with his English.
他的英語進步不大。
Misfortunes tell us what fortune is.
經過災難方知福。
and that is one of the things the young are busily engaged in seeking.
這正是年輕人所熱衷追求的。