Pollutants
n. 污染物质（尤指工业废物）( pollutant的复数形式 )
🗣️ 情景例句
The college runs summer courses for Chinese learneers of English.
这所学院为学习英语的中国人开设了暑期班。
How have you been these years?
这些年你怎么样？
But the significant thing is not the behaviour of the players but the attitude of the spectators:
但是，要紧的还不是运动员的行为，而是观众的态度，