Unlike most of the other holidays, the history of April Fool's day, sometimes called all Fool's day, is not totally clear.

不同于大多数别的节日，愚人节，有时被称为所有愚人的节日，它的历史不是完全清楚的。

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Unlike most of the other nonfoolish holidays, the history of April Fool"s Day, sometimes called All Fool"s Day, is not totally clear.

不同于大多数别的节日， 愚人节， 有时被称为所有愚人的节日， 它的历史不是完全清楚的。

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An incremental backup grabs all changes since the last full backup image (sometimes called a level 1 backup).

增量备份捕捉自上一次完全备份以来的所有变化(有时候也称1级备份)。

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So, the bowlers do their bowling and sometimes they knock down all the pins, which is called a what? A strike.

投球手投球时,有时他们撞到了所有障碍物，这叫什么呢，全打。

耶鲁公开课 - 心理学导论课程节选

We have first of all, the whole offering or "burnt offering," it's sometimes called. This is when an animal is entirely burned to create, as the text says, a pleasant smelling odor or pleasant smelling smoke that ascends to God.

第一个，整祭品或者有时候被叫做“烧祭品“,动物被整个燃烧，散发一种，正如文章中所说的，一种令人愉悦的气味,或者一种令人愉快的烟雾，上升到上帝面前。

耶鲁公开课 - 旧约导论课程节选

Sometimes that's called sharing and that's all there is to it, really.

有时候叫做共享数据,这就是所有的东西，真的。

哈佛公开课 - 计算机科学课程节选