lessen emission的用法和樣例：
例句
- The Regulation also requires certain printing machines to have appropriate emission control devices.
規例亦要求某些印刷機裝置減排設備。 - The flexible mechanisms of the Kyoto Protocol provide for transferable credits derived from greenhouse gas emission reduction projects.
京都議定書(shū)的靈活機制為溫室氣體減排項目提供貸款。
