O-r system
[医] 氧化还原系
🧩 词语组成解析
🗣️ 情景例句
Nice day, isn't it?
天儿真不错，你说呢？
I would like to go.
我要走了。
he answered me, but he spoke neither slowly nor clearly.
他回答了，但他讲得既不慢也不清楚。