[] a small mistake in the way a law or contract has been written that allows people to legally avoid sth that the law or contract intended them to do （法律、合同等的）漏洞，空子◆The authorities will pursue companies that abuse tax loopholes (= ways of paying less tax). 当局将追究钻税收空子（少交税）的公司。⨁a legal / tax loophole 法律的／税收的漏洞⨁to close / plug a loophole 封闭／堵塞漏洞