C2 a small area that is different in some way from the area that surrounds it(与周围不同的)斑,小块
UK informal a local area within which someone works工作地
More examples
Is that a patch of damp on the wall?
He skidded on a patch of ice.
For a moment I thought you had a patch of grey hairs, but it's just a trick of the light.
Freezing fog and icy patches are expected to cause problems for motorists tonight.
I get scaly patches on my scalp.
C2 a small piece of material sewn or stuck over something to cover it补丁,补片
a small piece of material that can be stuck to the skin, from which particular substances can be absorbed into the body膏药,贴布
an eyepatch 眼罩
a small computer program that can be added to an existing program in order to make the existing program work as it should(用来完善已有程序的)程序补丁
[ T usually + adv/prep ] specialized internet & telecoms to connect electronic or phone equipment to a system接通,连接(电子设备或电话)
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