On the one hand, again, a world with scattered trees is different from one where they're collected into forests; but on the other, what exactly is a forest over and above its trees?

从一方面来说，一个只有零星树木的世界与很多树木聚集成为森林的世界是不同的，但从另一方面来说，到底有没有一个界限，超过了多少树木，就可以称作是森林呢？

youdao

It gained the empire but, without its trees, its soil became bare and poor.

虽然他们建造了帝国，但是没了树，这个国家的土地变得贫瘠和光秃。

youdao

Alaska's wealth in oil, natural gas,trees,fish and animal skins makes its purchase one of the greatest deals any country ever made for territory.

VOA: special.2010.02.11

borrows its nickname from the large, flat-tailed rodent that uses trees to build dams.

VOA: special.2009.08.09

Grinding up trees,houses,boulders, locomotives,humans, and animals in its path, it slammed into Johnstown, pulverizing the center of town.

VOA: standard.2010.04.26

Its vast acres of sloping greenery, its glades and its trees present a striking backcloth.

ECONOMIST: Henry Moore's outdoor sculptures

The two buzzing squares make Piata Libertati feel like an oasis of relative calm, its trees offering shade to anyone who cares to sit and watch life sweep past.

BBC: An ancient Ottoman capital surfaces

It is now missing most of its main trees, and its interior has reverted to a sprouting scrub of ash and bramble.

BBC: England��s ghostly South Downs Way