不得不

If you decided to learn a new language, you would have to dedicate yourself wholeheartedly to the cause.

如果你决定学一种新的语言，你将不得不全心全意的投入其中。

Thus a truth may be self-evident -- eg the whole is greater than its part -- in which case we are said to have intuitive knowledge of it; or the truth may not be self-evident, but deducible from premises in which it is contained -- such knowledge is termed reasoned knowledge; or again a truth may be neither self-evident nor deducible from premises in which it is contained, yet the intellect may be obliged to assent to it because It would else have to reject some other universally accepted truth; lastly, the intellect may be induced to assent to a truth for none of the foregoing reasons, but solely because, though not evident in itself, this truth rests on grave authority -- for example, we accept the statement that the sun is 90,000,000 miles distant from the earth because competent, veracious authorities vouch for the fact.

因此，一个真理可能是不言自明的-例如整体大於部分-在这种情况下，我们说是有良知的知识；或真理未必是不言而喻的，但是从推的处所，其中载-这种知识是被称为理性知识；或再一个真理，可既不是不言自明的，也可推的，由房地，其中载，但理智却可能不得不赞同它，因为这样做，否则要拒绝其他一些普遍接受的真理；最后，智力可被诱导赞同一个真理，没有前述理由，但仅仅是因为，虽然并不明显，本身这个真理，就必须严重的权威-例如，我们接受了声明中说，太阳是90000000英里远离地球，因为能干，准确当局担保的事实。

But budgetary stringency and political pressure to deemphasize regulation had combined to shrink the regulatory staff and apparatus to the point where it was helpless to keep pace with the unfolding crisis.

由于经费短缺和政治上要求取消控制的压力，政府不得不削减调控机构的人员和设备，使这些机构无法应付迫在眉睫的经济危机。

"If they don't give me a steamer, I can't steam a vegetable," she said."I have to deep fry it."

"如果他们不给我一个蒸笼，我就不能清蒸蔬菜，"她说"我不得不把它们油炸了。"

Another of those deerskin, having upon it many golden slides and was obliged to retrench at other points and accept on, in the tone of one who really was looking said mr.

塞登？另一个这些鹿皮，在经但许多黄金幻灯片和不得不紧缩其他分和接受，在基调确实是一个谁寻找先生说。

Where the theory begins to get into the greatest difficulty is where it has to deal with some of the other aspects of contextual defeasibility that we have reviewed above, For example, to handle the simple examples of overt presupposition denial like (181) and (182), the conventional implicature theory is forced to adopt the view that the negative morphemes in natural languages are ambiguous between presupposition-preserving and presupposition-negating senses

理论开始进入最巨大困难的地方是它不得不处理的地方一些其它contextual defeasibility的方面我们已在上面回顾，例如，处理像(181)一样的公开的预想拒绝的简单的例子和(182)，常规的implicature的理论被迫采取用自然语言否定morphemes模糊的观点预想保存和预想否定意义

Then he had to defend his idea against people who laughed at him.

之后，他不得不为他的想法进行辩护，因为人们对他的这个想法嗤之以鼻。

Or you may have to defend yourself against an attack from someone, whether or not you have provoked it.

或者，你可能不得不防护自己免于来自某人的攻击，不管你是否已经激怒了它。

Defend oneself against 防备…… She had to defend herself against the guard dog.

她不得不防备看门狗咬她。

Under the circumstances, we have to defer discussing this subject.

在目前情况下，我们不得不推迟讨论这个问题。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失