必定的

Theorem 1 Suppose the function is differentiable at,then its partial derivative at exist, and the total differential of

定理1如果函数在点可微分，则该函数在点的偏导数必定存在，且函数在点的全微分为。

Unless we act discretely and conscientiously in the face of challenges, great consequences will inevitably follow.

如果我们能够负责任的独立面对挑战，那么令人满意的结果必定随后而至。

In which case, it would have to possess an absolute Divinity so that it

这样的情形下，它将必定拥有一个完整的神性，以至于

Your father can, and doubtless will, do this much for his friend.

你父亲能够，也必定会为他的朋友帮这个忙的。

If you do so , you will win their respect and friendship , which will certainly enrich your life .

你若这样做，就会赢得他们的尊敬和友谊，这将必定充实你的人生。

I appreciate what you have done in your exercise book and believe you will be successful in your English study

我为你的练习做得好而高兴，我相信你的英语学习必定能出色！

Oh, let us begin to believe that the promise will come true:"I will cleanse you from all your filthiness, and ye shall be clean; and will cause you to walk in My statutes, and ye shall keep them."

哦，让我们开始相信这应许必定实现：「我要洁净你们，你们就洁净了，……使你们顺从我的律例，谨守遵行我的典章。

More and more look to see if you must have the quality to be good folding bike.

多看看多找找必定有你所要的质量好的折叠自行车。

From the very beginning, you have already assumed that he loved you.

你在一开始的时候已经假设他必定是爱你的。

Property 2 Let be a continuous function of several variables on a closed region D, then can obtain any number between its absolute maximum M and its absolute minimum m.

性质2在有界闭区域D上的多元连续函数，必定在D上取得界于最大值M与最小值m之间的任何值。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。