Polycarboxylic
[機] 多羧酸的
??? 情景例句
I'll have to work for years to pay off my college loan.
我得工作好幾年才能還清助學貸款。
I remember the girl whose father goes there every spring.
我記得那個女孩的父親每年春天都去那里。
However, there is an even more insidious kind of pollution that particularly affects urban areas and invades our daily lives, and that is noise.
但是，還有一種更加隱蔽有害的污染，它專門影響城鎮(zhèn)地區(qū)，侵襲我們的日常生活，那就是噪音。