PHRASAL VERB-ERG （使）封闭；（使）堵住；（使）封死 If you block something up or if it blocks up, it is blocked completely so that nothing can get through it. （使）封闭；（使）堵住；（使）封死
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'Any holes in the kitchen where the mice are getting through?' – 'I've blocked them up.'. [VERB noun PREP.]
“厨房里还有没有老鼠洞？”—“我已经把它们堵死了。”
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Powdering a sweaty nose will only block up the pores and make the skin more uncomfortable. [VERB PREP. noun (not pronoun)]
往出汗的鼻子上扑粉只会堵塞毛孔，使皮肤更加不舒服。
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With this disease the veins in the liver can block up, and all sorts of damage follows. [VERB PREP.]
这种病会堵塞肝脏中的静脉，并引发多种损伤。
SYN clog (up), jam (up), stop up, bung up