A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re-emerged and has been captured on video months after its last sighting.

一头用两条后腿直立行走的新泽西州的黑熊已经成为社交媒体的宠儿，距离上次被目击的几个月后，它再次出现并被拍了视频。

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To prove it, he threw two back air-springs, and the police captain gave in.

为了证明这一点，他向后连跳了两下，那个警官就退让了。

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Before WebSphere eXtreme Scale, logon took 700 ms with two back-end calls.

在WebSphere eXtreme Scale之前，登录需要700 ms，两次后端调用。

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He went to Liberia in 2003 after the end of its two back-to-back civil wars, wars in which hundreds of thousands of people were killed.

VOA: standard.2010.06.29

These two oscillate back and forth so the moment of deprivation is often then balanced by a moment of imagination.

来回交替丧失的时刻,经常和想像的时刻,互相平衡。

耶鲁公开课 - 1945年后的美国小说课程节选

And the boy uses the trees to do two things, right: to go up, or go out, and come back, to return.

这个孩子用树做了两件事：,上去，出去，回来，落下。

耶鲁公开课 - 现代诗歌课程节选

Scotland's Marc Warren and Soren Kjeldsen of Denmark are joint third only two back.

CNN: STORY HIGHLIGHTS

But getting two back-to-back storms of this magnitude doesn't mean the drought is finished.

NPR: 2nd Winter Storm In Days Blasts Central US

They had all five guys down and we had one back or two back.

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