玉律的本义是指玉制的律管，律管是古代音乐用来确定音高的标准器。金科玉律一词较为常见，后人将玉律引申为楷模、榜样或规范。
付之一笑和金规玉律般的沉默会使人显得更加自然洒脱。
Face them with a smile , and silence will be the golden rule which makes one appear the more natural and unrestrained.
这些都是尽职的父母不会打破的“金规玉律”，除非你不得不破规矩。
These are Very Important Rules that must never be broken by any Serious Parent … until, of course, you want to break them.
要以眼还眼，无论如何得用一命偿还一命，一直是大多数州在司法制裁方面所恪守的金条玉律。
AN EYE for an eye, or at any rate a death for a death, is the type of justice that most states still embrace.
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