Polycations
(polycation 的复数) 聚阳离子
🗣️ 情景例句
The scam they were running left many people penniless.
他们的这场骗局让人们分文不剩。
I have a strong throwing arm!
我的手臂力大无比。
There is a boat in the river.
河里有一条船。