Pollutants
n. 污染物质（尤指工业废物）( pollutant的复数形式 )
🗣️ 情景例句
and I did both with Robbie.
有Robbie时我也这样做的。
We must listen carefully to the teacher.
我们必须注意听老师说的话。
He was smiling hopefully.
他满怀希望地微笑着。