Quadrivalence
n. 四价\\n[医] 四价
🗣️ 情景例句
Did you sleep soundly last night.
你昨晚睡得好吗？
It was not very wise of you to sell the property.
你把物业卖了可不是办法。
in the end, is reabsorbed into the great ocean of life.
但最终又被重新融进生命的大洋。