Polycarboxylic
[机] 多羧酸的
🗣️ 情景例句
Oh, you know I never answer that question, Harvey.
噢 你知道我从不回答这类的问题 Harvey。
Prosperity gains (or makes) friends, and adversity tries them.
顺境交朋友，逆境试真情。
Look at those people in the boats.
瞧船里的那些人！