"The lavatory won't flush; I've tried flushing it several times, but it won't work."

"厕所还了,我已经试过用水冲了好几次,但没有效果。"

The worker quickly cleared away the dirt that was choking up the chimney.

那工人很快就把烟囱的污垢清除干了。

His throat congested with phlegm.

他的喉咙被痰了。

The sewage channel chokes.

这条污水道了。