点击下方单词,选择对的这个单词
名词
Pollution-(污染)
1. 烟雾(烟与雾的混合物,见于某些重工业城市)Smog is a mixture of fog and smoke which occurs in some busy industrial cities.
1. air pollution by a mixture of smoke and fog
Synonym: smogginess
多通过句子记忆单词,而不是单独死记硬背。