Polyanion
聚阴离子
🗣️ 情景例句
She said she'll call you later.
她说她等会儿给你电话。
The butter has an odor of cheese about it.
奶油的周围飘荡着干酪的味道。
that intelligent life is bound to be a natural part of the universe.
有智力的生命必然是宇宙的自然组成部分。