Polypary
n. ( 水螅型) 珊瑚虫群体的附着基
🗣️ 情景例句
It's hard for some older people to take all that noise.
一些老年人没办法忍受那些噪音。
One usually pricks up one's ears when his name is called.
人在被叫到自己的名字时，通常要侧耳倾听。
below 20 per cent, its bactericidal action is negligible.
浓度低于20％时，杀菌能力基本上就不存在了。