The factory hired a licensed contractor to remove hazardous waste from the site every month.

該工廠聘請一家合格承包商，每月清運廠區的有害廢棄物。

Our office reduced paper waste by switching to digital invoices and electronic contracts last year.

我們辦公室去年改用電子發票和電子合約，減少了紙類廢棄物。

The hotel separates kitchen waste from recyclables to meet the city's new environmental rules.

這家飯店將廚餘與可回收物分開，以符合市政府新的環保規定。