但如果要实现时间旅行，要比这个速度快2000倍。
But to travel in time we'll have to go more than 2, 000 times faster.
但如果要那么做，他们都不必到那里去，他们清楚得很。
They don't even have to have been there, but if they were, they understand even better.
但如果要投入商业运行，该车还需要公共交通办公室的批准。
The cab will still need to be assessed by the Public Carriage Office before it can be used for commercial use on the road.
但如果要再次说出我爱她原因，我想我会说，因为她是那么的好。
But if once more asked to give reasons why I love her, I guess I'd still say because she's so good.
但如果要解析的是逗号分隔值文件，或空格分隔文本文件，又怎么办呢？
But what if all you have to parse is a comma-separated value file, or a series of space-delimited text files?
尽管生活中有理由只关注生存，但如果要潇洒走一回，你必须活出精彩。
While there may be reasons in life to focus on just survival, to fully live, you must thrive!
尽管有政策和法律的支持但如果要完成这些目标却还是有很大的困难的。
Policy and The laws enabling this are already in place but there is a huge challenge in implementation.
刚晾干的袜子上就包含了大量的光子，但如果要检测单个的光子，就需要更精细的实验了。
The zap in a freshly dried sock contains an enormous number of photons, but there are more delicate experiments where single photons are evident.
威尔拉斯等专家认为，在面试时你不应该先提及薪水，但如果要直接面对它时，你也不要犹豫。
Experts like Ms. Varelas agree that you shouldn't be the first to mention salary in the interview, but if confronted about it directly, you shouldn't hesitate.
你能体验到一种简朴的生活：每个小屋里有厨房，柴炉和冰箱，但如果要洗澡的话，那就要跳进湖里去。
The simplicity of the experience is everything: each hut has a kitchen, log burner and refrigerator but for a bath you'll have to jump in a lake.
我们可根据任何一本导游书写出那地方的大致情况，但如果要加进地方色彩的话，我们还得派一个记者去那里。
We can write a general description using any of the guide books to the place, but we shall have to send a reporter there if we want to include some local colour.
我不知道你是谁。但如果要记录我跟孩子的互动，我会做到最好。(研究人员提示：不要把我带入任何育儿研究)。
I don't know about you, but if I'm going to be recording my interactions with my kids, I'd be on my best behavior. (Note to researchers: don't include me in any parenting studies.)
当然，我们可能有一笔很大数量的应急基金，但如果要持续很长一段时间这笔钱可能就不够用了吧，所以不要自鸣得意。
Sure, you may have a big emergency fund, but you may need it to last a long time, so that’s no excuse for being complacent.
事实上这是不可行的。客户运货途中存在质量风险，但如果要减少2个人头的话，我就要检查改善的过程是否有效展开了。
This is virtually no, customer delivery with all quality risk, but if the headcount less than minus 2, then the escalation process and I check the escalation process have been effectively started.
研究者发现，这些蛋白似乎在细胞表面自由组合成包含四个蛋白的组合，但如果要结合其他的细胞，就必须有很多完全相同的这种组合。
He finds that the proteins seem to freely associate in groups of four at the surface of each cell, but that in order for another cell to bind, it must have pretty much the exact same group of four.
这不是什么大问题，但如果要我选择的话，我肯定是选大卫·爱登堡，他那让人兴奋的专业解说让人听着怎么也比奥普拉一天到晚假模假样的话剧腔要来得强。
The video is the same, but the voices are different. It's not a huge deal, but given the choice I'd take Attenborough's excited professorial narration over Oprah's fake drama any day of the week.
如果你想慢跑，但醒来遇到暴风雨的话，要准备好室内锻炼计划。
If you're expecting to jog but wake up to a storm, have an indoor workout program ready.
如果政府不向消费者征收销售税，消费者通常要自己负责向政府缴纳销售税，但大多数人并没有意识到他们应该缴纳销售税，只有少数人缴纳了。
Customers were generally responsible for paying the sales tax to the state themselves if they weren't charged it, but most didn't realize they owed it and few paid.
她们从来不会搭陌生人的车，但如果她们不这样的话我也会提醒他们要相信自己的直觉。
They have never wanted to catch lifts with strangers, but if they did I would warn them to follow their instincts.
如果你要评判我，就评判吧，但请相信，我已尽我所能。
Judge me if you must, but please know that I tried my very best.
如果父母的话题使你厌烦，但还是要礼貌认真地听，然后再转换话题。
If your parents bring up an annoying subject, listen politely, then change the subject.
我会教你怎么留下标记，如果你要纸，我会给你，但得过段时间。
Ill teach you how to leave your mark, and get you that paper if you want, but in due time.
但如果你要延迟七年以上时间还款，时间价值就很昂贵了。
But if you wanted to postpone it over seven years or so, time got a lot more expensive.
许多时尚杂志的页面模特经常采用潮流眼妆，但如果你要尝试的话，你要确保你的眼线笔笔尖是圆的，足够柔软和干净。
The pages of fashion magazines are filled with models rocking this beauty trend, but if you're thinking of trying it, you should be sure to keep the tip of the pencil rounded, soft, and very clean.
这项工作要求脸皮要厚，但如果你在销售业已经有了丰富的经验，你本身可能就非常灵活了。
These jobs require a tough skin; but if you have a lot of experience at sales, your ego is probably resilient.
但如果他要促使以色列达成让步，那就需要回答哈马斯的难题。
But if he is to push Israel into concessions he needs to answer the Hamas conundrum.
如果你是一个妈妈，没问题。但如果你是个普通女性，为什么要兼职上班？
如果你是一个妈妈，没问题。但如果你是个普通女性，为什么要兼职上班？
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