The cover helps protect the door closer from vandalism, dirt, and unauthorized adjustment.

它能保护门制动器不被破坏，弄脏，或随意调整。

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Mr Chamberlain said insurance for the shop in Bridge Street did not cover vandalism, so the business had to foot the bill for the replacement glass.

BBC: Aberystwyth shop owner plea after window smashed again

Mr Huff lists six potential motives for arsonists: revenge, excitement, profit, vandalism, extremism, and to cover another crime.

BBC: NEWS | Europe | Inside the mind of the fire starter