Quadrivalence
n. 四价\\n[医] 四价
🗣️ 情景例句
Keep quiet, I'm trying to get some work done.
请安静，我要处理一些工作。
Old wood is best to burn,old horse to ride.
老柴好烧，老马好骑。
What the child cannot forgive is the parents' refusal to admit these charges if the child knows them to be true.
父母错了，孩子们也看出来了，可是做父母的还不肯承认。