emission

英 /ɪˈmɪʃən/ 　美 /ɪˈmɪʃən/

n. 排放物；排放量A substance released into the environment, especially a polluting gas.
n. 排放；发出The process of releasing gas, heat, light, or other energy.

The mechanic checked my car's emissions this morning.

今天早上，修理工检查了我汽车的尾气排放。

Governments can reduce carbon emissions by investing in renewable energy and improving public transport networks.

政府可以通过投资可再生能源和改善公共交通网络来减少碳排放。

搭配

carbon emissions 碳排放exhaust emissions 尾气排放reduce emissions 减少排放emission standards 排放标准

指废气或排放量常用复数emissions；动词是emit。

emit (v.)、emitter (n.)