We assumed that this growth of old trees is pristine rain forest because the only way we know how to manage a forest is to clear the trees, and these weren't clear-cut.

我们之所以认为这片老树是原始雨林，是因为我们自己所知道的唯一的管理树木的方式就是把树砍掉，而这里没有明显的砍伐痕迹。

youdao

In the space of 30 years the old-growth chestnut forest in North America lost every specimen of a species — the mighty chestnut — that formerly constituted a significant hunk of the forest's mass.

在30年的生长中，北美的板栗林失去了物种——高大的栗树——的每个标本，这是以前板栗林中非常重要的一块。

youdao

This magnificent rain forest in Peru's Madre DE Dios region holds some of the last old-growth stands of mahogany in South America.

这个位于秘鲁马德雷德迪奥斯的壮美的热带雨林拥有南美洲几种最新出现的红木品种。

youdao

Some experts say only five percent of Finland's old-growth forest remains.

VOA: special.2009.04.22

It encompasses an old growth forest, which maintains pristine conditions and high biodiversity.

UNESCO: EDUCATION

There is already so little old-growth forest left that it threatens the long-term survival of many plant and animal species, so continuing to log such forests is deeply irresponsible.

FORBES: IKEA Under Fire for Clearing Ancient Russian Forest

Explore: The Wild Pacific Trail skirts rocky cliffs and meanders through dense old-growth rain forest to reveal dramatic vistas of the moody, tossing surf.

CNN: 10 dazzling hideaways by the sea