This might be a plausible hypothesis were it not for two factors.

若不下面两点，这种假使似乎有道理的。

And if not the butterflies-- and the caterpillars-- who will call upon me?

若不蝴蝶和毛毛虫，还有谁会看我呢？

If it's not a disease, it must be magic.

若不疫，魔法使然。

If it wasn't for that hair, I'd swear that you.

若不发型不同，你实在像。

The frenzy of business, when it is not a comedy, is a tragedy.

商业的狂热若不喜剧，便悲剧。

That would be abstract the concept of wisdom isn't mysterious.

智慧的概念若不神秘的话那会抽象的。

Obviously, this is very important to me, otherwise I wouldn't be going.

若不对我如此重要我也不会选择离开。

It should not leave my bureau, were it not absolutely necessary to have it copied.

若不非常需要抄的话，我不会让它离开我的办公桌。

He had told him that he would have died of hunger without Fagin's kindness.

他还说，若不自己对他仁慈，奥利弗会饿死的。

It would, it would have been impossible for me to make decisions about this if I hadn't seen it.

若不亲眼见到现场的情况，我会无法做决。

He'd forgotten all about the people in cloaks until he passed a group of them next to the baker's.

若不他在面包房附近又碰到那群披斗篷的入，他早就把他们忘了。

That wouldn't happen if the Earth wasn't round.

若地球不圆的，这样的事就不会发生。

The cave might never have been discovered had not the entrance been spotted by the distinguished French pot-holer, Berger.

若不法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。

The cave might never have been discovered has not the entrance been spotted by the distinguished French pot-holer, Berger.

若不法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。

What is up with that family? If they're not vampires, then what the hell are they?

那个家族怎么回事？若他们不吸血鬼，那他们到底什么？

You'd still be a washerwoman if it weren't for me.

若不我，你如今还个洗衣妇。

Now I never would have had the guts without talking to you.

若不你 我决没勇气这么做。

Why? If not to take deadly aim?

还能为什么？若不打算一枪毙命？

I wouldn't be here right now if I didn't absolutely have to be.

我若不走投无路绝不会出此下策。

If they hadn't discovered it and started treating it when they did, it would have claimed his life within a few years.

若不发现及时，那个男人很可能活不了几年。