secret gutter

• 屋檐暗水槽,暗沟

secret gutter的用法和样例：

例句

1. I can sleep in late, waking up occasionally to hear soothing patter on the roof, water racing down the gutter.
   我可以睡到很晚，时而醒来倾听屋檐上柔和的拍打，水顺着水槽往下流的声音。
2. For catchment areas greater than gutter capacity, slotted holes can be installed.
   如果汇水面积大于天沟排水能力，可以在天沟底部打孔。