Without dense forests, our ancestors were forced to walk instead of swing on a branch to find the next tree.

没有茂密的森林，我们的祖先被迫行走，而不是从一个树枝荡到下一个树枝。

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To reproduce the landscape in 3-D, a twin-engine plane flew over the city and fired laser beams through the dense tree canopy. The beams bounced off the ground, buildings, and other structures below.

为了在3 - D模型中重现，一架双引擎飞机飞越城市和浓密的树冠，发射并采集从地面，建筑物和其他结构反射回来的激光束。

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A lemur leaps from tree to tree in a dense forest, the camera following the animal with every bound.

一只狐猴在茂密丛林的树间跳跃，镜头紧随着它的每一次弹跳。

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Next morning we start out on a trail through a slightly elevated, dense beech forest, which rises, during a hike of seven or eight hours, over the tree line and 3, 500-foot-high Mackinnon Pass, then down the other side.

FORBES: Magazine Article

After a short flight from Kathmandu to the mountain hamlet of Lukla, it took me 12 days to reach Base Camp, trekking 160km and climbing 10, 000 feet, hiking through dense forest, over a dozen suspension bridges, above the tree line and, finally, into a frozen landscape of ancient rock and glacial ice.

BBC: Everest's growing problem

We hugged three-story-high dirt walls with vines clinging to them, passed dense bamboo forests, fragrant hibiscus bushes and groves of towering rainbow eucalyptus, a rare tree with multicolored bark.

WSJ: Driving the Hana Highway in Maui, Hawaii