PHRASAL VERB-ERG (使)阻塞;(使)堵塞 When something clogs up a place, or when it clogs up, it becomes blocked so that little or nothing can pass through. (使)阻塞;(使)堵塞
22,000 tourists were clogging up the pavements. [VERBPREP. noun]
2.2万名游客将人行道堵得水泄不通。
The result is that the lungs clog up with a thick mucus. [VERBPREP.]