名词

1. 堵塞物；障碍物；堵塞
A blockage in a pipe, tube, or tunnel is an object which blocks it, or the state of being blocked.

1. the act of blocking

Synonym: closureocclusion

2. an obstruction in a pipe or tube

e.g. we had to call a plumber to clear out the blockage in the drainpipe

Synonym: blockclosureocclusionstopstoppage

3. the physical condition of blocking or filling a passage with an obstruction

Synonym: obstruction