Set a date to use as a schedule goal but not as an ultimate deadline.

可以先制定一个日期作为开发目标，但不能作为最终的交货期限。

youdao

UML defines a use case as "A description of a set of sequences of actions, including variants, that a system performs that yields an observable result of value to a particular actor.

UML 将一个用例定义为“一个系统执行的一系列行为的描述，包括变量，它将生成特殊参与者所得值的可观测结果。”

youdao

A use case is a set of possible interactions in a system as its actors proceed toward a single, defined goal.

一个用例是在一个系统中的一组可能的交互，它的参与者朝着同一个被定义的目标进行。

youdao

By "difficult," it is meant, I think, well, first of all that it is in some sense set apart from common speech, as a specialized and highly self-conscious use of language.

艰深“的意思，我认为，首先，某种程度上它是和平时谈话有所不同的，专业性极强，对语言运用自知也很高。

耶鲁公开课 - 现代诗歌课程节选

The London Interbank Offered Rate, or LIBOR, is a measure of credit availability because a lot of lenders use it as a peg to set their interest rates, and it rose yesterday.

NPR: U.S. Markets Wait Anxiously For Rescue Plan

Apple is in talks with some of the largest U.S. cable operators about letting consumers use an Apple device as a set-top box for live TV.

WSJ: What's News

There's been no talk of a strike, and it wasn't clear whether the union would use the talks as a pattern to set the stage for negotiations during the summer with tire makers Bridgestone-Firestone and Michelin-BFGoodrich.

WSJ: Goodyear, union begin contract talks for 6 plants