關於sworldalmosteveryone的百科

•  Intoday’sworld,almosteveryoneknowsthatairpollutionandw...

• 問題詳情： Intoday’sworld,almosteveryoneknowsthatairpollutionandwaterpollutionareharmfultopeople’health.However,notallthepersonsknowthatnoiseisalsoakindofpollution,andthisisharmfultopeople’health,too.  Peoplewhoworkandliveundernoisyconditionsusua...
• 2021-02-149106