未定式

To discriminate the existence of indeterminate form s double limit to binary function is a relatively difficult question.

判定二元函数f的未定式二重极限的存在性是一个比较困难的问题。

If the limits of and are both or infinity as approaches, then exists or does not exist ,which is called the indeterminate form and represented by or .

如果当时，两个函数都趋于零或部趋于无穷大，那么极限可能存在，也可能不存在。通常把这种极限叫作未定式，并分别简记为，或。

Shall: used as an aux v to express the future tense, used with the first person, affirm and interr , and second person, interr only, Note that will is often used for shall in colloq style.

用作助动词以表示未来时，用于第一人称之肯定式及疑问式，及第二人称之疑问式。

A unrecorded B to be unrecorded C unrecording D to have been unrecorded.

这是 go 的一种特殊用法，即与否定式的过去分词连用，表示某动作未发生。

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。