但如果这是战略性的，就不是吗？
"Not if we don't listen," he says.
他说：，“如果我们不想听当然就不能。”
不是他们吵架很多。
Not if I can harvest the factors in pairs.
如果我可以成对获得因子的话就不需要。
"The question is not if, but to what degree".
问题不是是否交流，而是交流到什么程度。
I know not if I should speak to him or keep silent.
我不知道我是应该同他说话还是保持沉默。
“No, not if I had known what lay ahead,” says Felix.
“不，如果我早知道会是这样，我不会来的，”菲利克斯回答说。
SCARLETT: But you can't. Not if you care for me.
思嘉：你不能娶她，不管你喜欢不喜欢我。
The question of infinite storage was not if but when.
无限量存储时代的到来也是迟早的事情。
Not if the message is written in a language you don't know.
但如果信息是用你所不熟悉的语言写成的，怎么办？
They cannot bring peace, not if they stay for 50 years.
他们带不来和平，就算在这里待上50年也带不来。
But again, not if you're starting a small online based business.
可是，成立一个小型电子商务网站并不困难。
The question is becoming not if but when that bubble will burst.
问题不再是泡沫破灭的可能，而是破灭的时间。
Perhaps, but not if they merely replace PCs for the same tasks we do now.
也许是，但如果他们只是在我们现在所作的同样的工作中取代PC，那就不可能。
A village can support several identical stores, but not if they get too big.
一个村庄适合有几间普通的商店，但店面太大却不一定是好事。
Are you pressed for time? If not, I suggest we have lunch.
你时间紧吗？如果不紧的话，我建议我们一起吃午饭。
If not a large concern, the Potomac Nursery was at least a successful one.
虽不是一个大生意，波托马克幼儿园至少是一个成功的公司。
Such measures are desirable, if not essential.
这些措施即使不是必要，也是可取的。
The government had a moral, if not a legal, duty to pay compensation.
政府即使没有法律上的义务也有道义上的义务进行赔偿。
She understood his meaning, if not his words, and took his advice.
她即便不懂他的语言，也明白了他的意思，并且接受了他的建议。
If you're not careful, you could finish up seriously ill.
你要是不小心，可能到头来会得场大病。
Do you want that cake? If not, I'll have it.
你要那块蛋糕吗？不然我就要了。
I'm not sure if Friday's trip is a go.
我说不准星期五是否能成行。
Who's to say we would not have succeeded if we'd had more time?
要是时间更充裕，没准儿我们就已成功了，谁说得准呢？
Sometimes that standard is quite difficult, if not impossible, to achieve.
有时那个标准，即使并非不可能，也是很难达到的。
Why bother asking if you're not really interested?
如果你不是真的感兴趣，干吗费口舌打听呢？
You'll fry on the beach if you're not careful.
若在海滩上不小心会被太阳灼伤的。
You'll fry on the beach if you're not careful.
若在海滩上不小心会被太阳灼伤的。
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