我们需要更换厨房水槽下面的水管。

We need to replace the ___tubing under the kitchen sink.

孩子们喜欢在雪坡上玩充气圈滑行。

The kids love ___tubing down the snowy slopes on inflatable rings.

工人们正在安装新的金属管道用于供水系统。

The workers are installing new metal ___tubing for the water supply system.