- [countable]
a long curved channel made of metal or plastic that is fixed under the edge of a roof to carry away the water when it rains 檐沟；天沟 
a blocked/leaking gutter 堵塞了的／漏水的檐沟
- [countable]
a channel at the edge of a road where water collects and is carried away to drains 路旁排水沟；阴沟 I stepped off the pavement and walked in the gutter. 我偏离了人行道，走在排水沟里。
- the gutter[singular]
the bad social conditions or low moral standards sometimes connected with the lowest level of society 恶劣的社会环境；（社会最低阶层的）道德沦落
Word OriginMiddle English: from Old French gotiere, from Latin gutta ‘a drop’; the verb dates from late Middle English, originally meaning ‘cut grooves in’ and later (early 18th cent.) used of a candle which melts rapidly because it has become channelled on one side.