Dopant
n. 掺杂物, 掺杂剂\\n[计] 掺杂物
🗣️ 情景例句
She was in our class.
她和我们同班。
What do you think of the proposal?
你的看法如何？
Since that time, racing drivers have reached speeds over 600 miles an hour.
从那时以来，赛车选手已达到每小时600英里的速度。