gum (something) up or gum up (something) informal
: to prevent (something) from working or flowing properly使卡住；阻碍；粘住 -
Don't use that paper with the copier; you'll gum it up.别在复印机上用那种纸，机器会出问题的。
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The highway construction has really gummed up traffic.公路建设确实阻碍了交通。
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The bearings are all gummed up [=clogged up] with mud.轴承都被泥巴糊住了。
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often used in phrase gum up the works常用于短语gum up the works