翻译：一谈到；当提到；当谈到；当涉及某事。
1、当涉及某事：
例证：Most of us know we should cut down on fat. But knowing such things isn't much help when it comes to shopping and eating. 我们大多数人都知道应该减少脂肪的摄入量。但是涉及购物和吃东西的时候，这些常识就丢到一边去了。
2、一谈到；当提到；当谈到：
例证：When it comes to your happiness, the people with which you surround yourself will influence you. 说到你的快乐，你选择和哪些人相处也会直接影响到你。
扩展资料：
近义词：
1、mention 提及；说及，说到，尤指简短地
例证：His immediate superior, General Geichenko, had singled him out for special mention. 他的直接上级盖琴科将军特别提到了他。
2、refer to 提到
例证：Both congressional letters refer to a study I wrote with Joseph Gagnon. 美国国会的两封信都提到了我与约瑟夫加尼翁（Joseph Gagnon）合作撰写的一篇研究报告。
3、make memtion of 提到
But the tooltip doesn't make any mention of added threat like the tooltips for other abilities like Shield Slam and sunder armor. 但是技能说明里面没有提到任何关于额外威胁值的说明？比如说盾牌猛击和破甲都有说明。
例句：
1. When it comes to chocolate, resistance is futile.
当巧克力摆在面前，抗拒是徒劳的。
2. Memory leaks are biggest problems when it comes to production servers.
内存泄漏是最大的问题，它涉及到生产服务器。本回答被提问者采纳
日常口语常用 用法相当于 咱汉语 你说你,你就XXXX