Quinquevalent
a. 有五种不同原子价的, 五价的\\n[医] 五价的
🗣️ 情景例句
She finished the race strongly.
她很有毅力地跑完了全程。
I'm writing to a friend of mine in South American.
我在写信给一个美国南部的朋友。
As the play draws to its close, they wonder whether they will ever catch that last train home.
当戏快演完时，他们又为是否能赶上末班火车回家而犯愁。