You know, we're in the tree line here.

知道吗 我们在森林线附近。

You're soaring above the tree line.

你漂浮到树线上。

This moraine gives us easy access to the tree line.

沿着冰碛走 我们会很容易到达森林线。

Above the tree line there is a zone that is generally called alpine tundra.

林木线以上区域通常被叫作高山冻原。

Tankers whisking above the tree line, dumping retardant by the thousands of gallons to meet the advancing flames.

倾倒机在树木上方呼啸而过，将数千加仑的阻燃剂倾泻下来，以应对不断蔓延的火势。

We dove low, skimming the tree line.

我们潜得很低，掠过林线。

It's a wide street with tree lined sidewalks.

这是一条宽阔的街道, 人行道两旁绿树成荫。

Cottonwood and willow trees lined the riverbanks.

三叶杨和柳树排列在河岸边。

We passed the tree line on our drive.

本特利：我们开车经过了林木线。

Even in winter, they can survive above the tree line thanks to their thick coats.

即使在冬天，它们也能在树线以上生存，这要归功于它们的厚外套。