Alsever's solution
[医] 奥耳塞佛氏溶液(保存羊红细胞)
🧩 词语组成解析
🗣️ 情景例句
I know that area.
我知道那地方。
It takes a bit of nerve to cross these chain bridges.
过这种铁锁桥需要有点胆量才行。
It's a book.
一本书。