Pentacid
a. [化]五价的
🗣️ 情景例句
Good morning, Mom.
早安 ，妈妈。
It hurts right here.
就这儿疼。
The captain learnt from the letter that the name of the lost ship was the Karen.
从这封信中船长了解到沉船船名是“卡伦”号。