Charles was charged with speeding but was acquitted because of a loophole in the law witch states that the arresting officer should have been in uniform.
查尔斯被指控超速行驶，但后来又被宣布无罪，因为他钻了法律的空子，法律明文规定：执行任务的警察应该穿上警服。
A good lawyer can always find a loophole.
精明的律师总能找到漏洞。
I saw her coming through a loophole.
我通过透光孔看到她来了。
