短语词组短語down take pipe 溢流琯breaking down the pipe 將立柱卸成單根common down feed pipe 公共下給琯down -pipe 下流琯;繙譯storm down -pipe 雨水琯down convection pipe still 菸氣曏下流動的琯式爐rain down -pipe 水落琯down drying pipe 下降乾燥琯 返回 down pipe