choke plug

例句：

1. 1. The car's engine was seized by a blockage in the fuel line.
   汽车的引擎被燃料管线中的堵塞物卡住了。
2. 2. The engineer found a blockage that needed to be cleared before the project could proceed.
   工程师发现在项目开始之前需要清除一个堵塞物。
3. 3.The plumber had to clear a blockage from the pipes before he could fix the leak.
   水管工在修理泄漏前必须清除管道中的堵塞物。