created sense approved 暗桩/暗樁 · ànzhuāng · spy
暗桩 / 暗樁
ànzhuāng
spy
a hidden informer, secret agent, or lookout planted within an organization
警方在那个犯罪集团中安插了一个暗桩。
created sense approved 暗桩/暗樁 · ànzhuāng · submerged piles
暗桩 / 暗樁
ànzhuāng
submerged piles
submerged piles or stakes installed to prevent the passage of boats
河道里布满了暗桩，船只无法通过。