n.[化]二氧芑；二恶英
They also spew toxic chemicals such as benzene and dioxin into the atmosphere. 还向大气中排放诸如苯及二氧芑之类的有毒化学品。
The main source of Dioxin pollution is rubbish cineration. 垃圾焚烧是城市中二恶英污染的主要来源。
二恶英
