Radia symmetry
[医] 辐射对称
🧩 词语组成解析
[法] 反箕形纹
🗣️ 情景例句
running for the school board.
竞选联合校董会董事。
After the flood, the carpets were wet for a month.
洪水过后一个月，毛毡还是湿的。
It's a book.
一本书。