| 例句 |
Badly corroded metal gutters and downpipes should be replaced by the plastic type.锈损严重的金属排水沟和下水管应该换成塑料的。The disease is directly linked to poor drainage systems.这种病与下水管线不完善有直接关系。The council has got the road up because of a broken sewer.因为下水管道破裂，市政会正在整修道路。The drain in the bathtub/sink is blocked/clogged.浴缸/水槽的下水管堵住了。 |