arctic tree line [林] 北极树木线 ; 着名的极地树线
Tree Line Films 制作公司
pine tree line slots tied 松线绑槽位
Tree Line Trl 街道地址
tree-line 林木线
pine-tree line 松树线
lower tree line 森林下限
同义词： timber line timberline
以上来源于: WordNet
N the zone, at high altitudes or high latitudes, beyond which no trees grow. Trees growing between the timberline and the tree line are typically stunted 林木线; 指高海拔或高纬度地区树木生长的上限
This rapid zone of transition is called the upper timberline or tree line.
这种快速的过渡地带被称为“上树带线”或“林木线”。
Above the tree line there is a zone that is generally called alpine tundra.
林木线上方有一个区域，通常被称为高山苔原。
Even in dense forest, you should be able to spot gaps in the tree line due to roads, train tracks, and other paths people carve through the woods.
即便身处茂密的森林之中，你也应该能够发现人们在树林中开辟道路、铁轨和其他小路而形成的林木线缺口。
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