我用通渠剂来疏通浴室的下水管道。

I used a drain cleaner to ___unclog the bathroom pipe.

我用热水和小苏打来疏通堵塞的下水道。

I used hot water and baking soda to ___unclog the blocked drain.

我用管道疏通剂清除了堵塞的下水道。

I used a drain cleaner to ___unclog the blocked pipe.