Cooxidation
共氧化
🗣️ 情景例句
Where did this money come from?
这些钱从哪来？
You need to transfer at central station.
你必须在中央车站换车。
When they were very young, Mr. Green sometimes dressed up in a red coat. But he doesn't do that now.
在他们很小时，有时候格林先生穿上一件红色的外套。但他现在不那么做了。