Contaimination
[化] 染菌
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
Would you please pass me the sugar?
可以请你把糖递过来吗？
They were in fashion last year and the year before last.But they're not in fashion this year.
这鞋在去年和前年时兴，而今年已不流行了。