如果你不知道的话你会问吗？
你知道南京吗？这个假期我去了南京。如果你不知道的话，我将会介绍这座美丽的城市。
Do you know Nanjing? I went to Nanjing on the holidays. If you don't know it, I'll tell you something about the beautiful city.
如果你不知道的话，问问俄罗斯人吧- - -他们知道一些能够安然度过危机的好方法。
If not, ask the Russians - they know some nice ways of how to survive the crisis...
如果你不知道的话，那么就去找一个曾经经成功搭建梯子获得自己的馅饼的人，问问他该做些什么准备工作。
If you don't know, find a person who has managed to build a set of stairs to reach his pie, and find out what needs to be done.
如果你不知道这家公司的话，它很有可能就是个诈骗。
他说：“如果你不知道这些地方并且你也没有任何在冰川环境的生存经验的话，在只有2至3摄氏度的温度时，就可能会是很危险的。”
He said: 'in temperatures of just 2-3c or below it can be dangerous if you don't know the place and if you don't have experience in an ice environment.
考虑好你想说什么，如果你也不知道说什么的话，你可以告诉孩子‘我不知道，咱们一起找出答案吧’。
Think about what you want to say and, if you don't know, say, "I don't know, let's find out together".
而如果你已经有所作为自己还不知道的话该如何是好呢？
And what if you've already produced your big hit and don't know it yet?
如果他们不知道的话，你就应该尽快逃离。
If they do not know the code word, you should run away from them as fast as possible.
我不知道，如果你知道的话请告诉我。
特别是如果你不知道选择探索性测试的话。
如果你不知道要去哪里的话就很难达到你的目标。
It's difficult to reach your destination if you don't know where you're going!
如果你不知道这个答案是什么的话，你就即兴发挥一下吧。
你知不知道，如果我们把土地用来种粮食而不养家禽的话。
它在一定程度上可能是真实的，但是如果你不知道一个女人的相貌而给她发信息的话，那么你的安排是无法确保可以得到有质量的约会的。
It may partially be true but if you are sending messages without reading a woman's profile, you won't get quality dates on your schedule.
Bella没有属于自己的真正朋友：如果不和自己最好朋友的哥哥恋爱的话，你最好的朋友就不知道你还活着，这是件让人悲伤的事情——而这种事儿是Bella常干的。
Bella has no real friends of her own: you know it's sad when your best friends wouldn't even know you were alive if you weren't dating their brother -and that's pretty much Bella's deal.
但是这种方法有个小小的缺点，这和内存映射文件的大小有关。如果事先不知道大小的话，为了以防万一，你可能会构造一个超级大的文件。
Now, there is a small drawback with this approach and is related to the size of the memory mapped file.
如果，你不知道它们是用PhoneGap制作的话，你可能认为这些应用是本机应用。
If you didn't already know they were made using PhoneGap, you may have thought that they were native applications.
如果你不知道几何办法的话，还有另一种办法的，从x，y方程开始。
The other way to do it, if somehow you are missing the geometric trick, is to start from the x, y equation.
如果你不知道这点的话，你就否定了潜藏在自己身上的非凡能量。
Without knowing it, you reject the phenomenal power that you have on your life.
如果你你没有早餐创意了，不知道如何让挑剔的学步婴儿吃他们每天的主食的话，下面是一些让宝宝回到早餐桌上的很棒的创意。
If you have run out of breakfast ideas on how to get your fussy toddler to eat their main meal of the day, here are some fantastic ways to bring breakfast back to your table.
首先，你可能并不知道全部的事实，如果你拿同事的薪水来和经理谈加薪的话，就会把经理陷于尴尬的处境。
First tof all, you may not have all your facts right, and bringing up your colleague's salary will put your manager into an uncomfortable position.
首先，你可能并不知道全部的事实，如果你拿同事的薪水来和经理谈加薪的话，就会把经理陷于尴尬的处境。
First tof all, you may not have all your facts right, and bringing up your colleague's salary will put your manager into an uncomfortable position.
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