Sometimes people may cross a line by Posting inappropriate messages or flirty comments.

有时候人们因发表了一些不当的信息或暧昧的评论而越界。

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As take an examination of grinding popular major, how should examinee prepare economics adequately kind professional second-round exam, be in numerous show itself in the person that cross a line?

作为考研的热门专业，考生应该如何充分准备经济学类专业的复试，在众多过线者中脱颖而出呢？

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When you cross the finish line you'll be given a bar code and you take this to one of the run volunteers, who will scan it.

当你冲过终点线时会得到一个条形码，你把它交给其中一个赛跑志愿者，他会扫描这个条形码。

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The Greek Cypriots canceled the latest session Thursday after Turkish Cypriot authorities held up a bus convoy of Greek pilgrims for lengthy security checks as they sought to cross the dividing line between the communities.

VOA: standard.2009.09.05

However, company internet evangelist Vint Cerf argues that Google shouldn't (and doesn't) cross a line in the sand on user anonymity.

ENGADGET: Vint Cerf: Google services need a degree of anonymity, and they deliver it

Very soon, arguably within the next five years, we will cross a line and computers will begin to see better than humans.

FORBES: Teaching The iPhone To Drive: The Coming Singularity In Machine Vision

Or does it cross a line in terms of privacy?

CNN: Facebook pulls location-tracking feature