border mountains

基本解释

It was a very daring robbery, and they planned to cross the border via the mountains.
他们胆子的确很大，竟然打算翻越阿尔卑斯山逃出国境。
The island comprises a large central lowland of limestone with a relief of hills surrounded by a discontinuous border of coastal mountains which vary greatly in geological structure.
爱尔兰岛由一块很大的石灰岩中心低地和周边的丘陵地貌组成，周围不连续的环绕着不同地质结构的海岸山脉。
House stems from Chiang Mai in northern Thailand, Burma border Delao Mountains eastward from the Northwest Nanliu, in the air and sand-wang difficult River confluence into ACMECS main stream.
源于清迈府北部泰、缅边界的登劳山脉，由西北向东南流，在那空沙旺与难河汇流成湄南河干流。
jingqiumei33.blog.163.com

The treaty made the forty-ninth parallel the border from the Rocky Mountains to the Pacific Ocean.
He acknowledged that the situation today is serious with threats emanating from insurgents inside Afghanistan as well as from across the border in the mountains of Pakistan.

Washington County is a terrain of gentle hills and close valleys that grows more rugged as you get east over toward the Vermont border, where the Green Mountains begin in earnest.
NPR: Excerpt: 'World Made By Hand'
Some 500 members who take their hives across the border in early summer to Kyrgyzstan's cooler mountains had been learning the letter of the law to counter the border guards' demands for bribes.
ECONOMIST: Uzbekistan