同样，如果一种植物或动物没有留下任何可以繁殖的后代，它就不能把所有的能量浪费在使自己变得更强壮上，因为这是最可能走向灭绝的方式。
Similarly, a plant or animal cannot squander all its energy on growing a big body if none would be left over for reproduction, for this is the surest way to extinction.
现在所有的建筑都必须是无障碍的，如果拆除没有太大困难或不用花费过多的话，现有的设施必须拆除障碍。
All now buildings must be made accessible, and existing facilities must remove barriers if the removal can be accomplished without much difficulty or expense.
所有的律师都会告诉你说，如果和你同居的男人离开了你，你没有权利要求经济补偿。
Any lawyer will tell you, if you're cohabiting and the man leaves you, you haven't got a leg to stand on.
要使你的房子里没有小老鼠，用圆珠笔来检查下所有的小洞。如果圆珠笔能放进去的话，那小老鼠就可能钻进去。
To keep your house mouseproof , check all small openings with a ballpoint pen. If it fits the hole, it will let mice in.
如果我没有时间回答所有的问题，我将选一些问题一起回答，让中国日报网在网上发布。
Although I will not have time to answer all of the questions, I will choose some of them with me and answer them for ChinaDaily.com to post online.
没有人知道哪一种电池技术（如果有的话）最终将占据主导地位，但有一件事是清楚的。
No one knows which—if any—battery technology will ultimately dominate, but one thing remains clear.
如果你还有时间，就把所有的东西都检查一遍，确保你没有犯任何粗心的错误。
If you have time left, go over everything to make sure you haven't made any careless mistakes.
他认为，如果这三种要素你都没有的话，你就没有爱。
He argued that you don't have love if you don't have all three of these elements.
将 50/50的异丙醇和水混合到一个小喷雾瓶中，如果你有的话——如果没有，就把你的布轻拍入溶液中。
Mix a 50/50 solution of isopropyl alcohol and water into a small spray bottle if you've got one—if not, just dab your cloth into the solution.
如果你没有足够的时间阅读新闻报道或观看视频，Pocket 可以帮助你在线保存所有的内容。
If you don't have enough time to read news stories or watch videos, Pocket can help you save all of them online.
如果答案是没有的话，你能够做些什么以改变你的工作环境以实现这些呢？
If the answer is no, what can you do right now to change your workplace to "get it"?
如果人类显示在动物实验中所没有的反应，研究人员就回到实验室，尝试在动物身上重现这些副作用。
If humans display reactions not seen in the animal studies, scientists return to their laboratories and try to reproduce these side effects in animals.
如果没有的话，无论如何，建就是了。
如果没有的话，我们继续往下，线性参数方程组。
OK, so if not, let's move on to linear parametric equations.
但如果你一直服用而且没有的到处方，那就有点过界了。
If you're consistently using it and not prescribed that's crossing the line.
如果没有的话，你也可以和你感兴趣的孩子一起玩。
如果没有的话，那我应该继续坚持还是换一条道呢？
If not, should I keep on this path or go in another direction?
如果什么都没有的话，那什么也看不到。
因此如果从研究的角度，至少对我们而言，如果他要说一些人就是与生俱来而另一些人则没有的话，这就一无是处。
So it would be useless if, in terms of research, at least for us, if he would say, well, some people are born with it, and others are not.
如果没有的话，你要告诉管理者设立这样一套系统，如若还不行，可以向职业安全与卫生条例管理局通报。
If they don't have one then talk to management about getting one and, if you need to, report them to OSHA.
如果还没有的话，那么可以使用系统中的另一个目录来练习本文讨论的命令。
If you didn't, then you can use another directory on your system to practice the commands discussed in this article.
如果没有的话就要与员工一道对目标进行修改。
许多人都失业了。如果你没有的话，你就有理由为你的工作而感到兴奋。
Many people are jobless. If you aren't, you have a reason to be excited about your work.
如果它们没有的话，你明天就不能玩这些玩具了。
If they aren't, you won't be able to play with them tomorrow.
我生成了一个公共ssh键；如果您还没有的话，那么应当生成一个键。
I gave my public SSH key; you should generate one if you don't have one already.
当你保存完草稿准备发布文章时WLW会帮你检查你是否已经添加了这些，如果没有的话那么就赶紧吧。
When you go to publish or save a draft to your site, WLW will check that all these are present and, if not, ask you to add them.
我猜想如果为女人开发一个弥补下列因素的化妆程序(如果现在没有的话)，这将会使得开发者发财。
I predict some app developer is going to get rich by writing a Makeup app for women (if one does not already exist) that compensates for the following factors.
我猜想如果为女人开发一个弥补下列因素的化妆程序(如果现在没有的话)，这将会使得开发者发财。
I predict some app developer is going to get rich by writing a Makeup app for women (if one does not already exist) that compensates for the following factors.
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