尾水渠道

wěi shuǐ qú dào

outflow channel

尾

wěi

tail

水

shuǐ

water

渠

qú

(artificial) stream; canal; drain; ditch (CL:條|条[tiao2])

道

dào

road; path (CL:條|条[tiao2],股[gu3])