点击下方单词,选择对的这个单词
1. 排水系统;下水道系统;污水处理系统Sewerage is the system by which waste matter is carried away in sewers and made harmless.
1. a waste pipe that carries away sewage or surface water
Synonym: sewercloaca
2. waste matter carried away in sewers or drains
Synonym: sewage
多通过句子记忆单词,而不是单独死记硬背。