East of the boundary, mountain peaks on Kuh-i-Rahmat cast dark shadows to the north.

在边界东边，拉赫马特山山峰在北侧投下阴影。

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The boundary between the two, the tropopause, is about 18km above your head, if you are in the tropics, and a few kilometres lower if you are at higher latitudes (or up a mountain).

如果你身处热带，这两大气层的分界线——对流层顶离你的头顶约18公里高；如果在高纬度地区(或高山上)则少几公里。

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The boundary between agricultural land and mountain runs roughly northwest-southeast.

农作地区与山区的分界基本是西北-东南走向。

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Typically, a mountain range will be the boundary between the area of two poleis or a stretch of water, because Greece has the sea winding through it everywhere.

比如,一座山脉,就能成为一种典型的城邦之间边界,由于希腊四处邻海,一段水域也可以成为边界

耶鲁公开课 - 古希腊历史简介课程节选

At 11am on 13 July 1375, dignitaries and eminent farmers from both valleys met atop the 6, 500ft Col de la Pierre St-Martin mountain pass, laid their hands together on the boundary stone and declared their peaceful intent.

BBC: France and Spain��s centuries-old celebration of peace

And in June 2012, a mountain ranger working for the national park authority came across evidence of panda feeding sites within the boundary of the park.

BBC: The return of China��s wild panda