1850年至1890年间，随着欧洲集约化农业方法在世界范围内的推广，数百万公顷的森林和林地被砍伐殆尽。
Millions of hectares of forest and woodland fell before the newcomers' axes between 1850 and 1890, as intensive European farming methods expanded across the world.
自从一万年前农业开始发展以来，已有三分之一的树木被砍伐殆尽。
As much as a third of the total tree cover has been lost since agriculture began some 10,000 years ago.
近年来取得的进步表明：人类并非注定要将地球的森林植被砍伐殆尽。
The progress made in recent years shows that mankind is not doomed to strip the planet of its forest cover.
1890年爆发采银热潮，矿工和伐木工为了建造矿井和房屋，将这里的树木砍伐殆尽。
During the Silver Boom of 1890, miners and loggers harvested the trees, using the timber for mine and home construction.
但随着密西西比三角洲的森林被砍伐殆尽，这种能制造出独特的“嘟嘟，嘟嘟”啄木声的啄木鸟已经渐渐灭绝了。
But as the big woods of the Mississippi Delta were chopped down, the woodpecker-with its distinctive tooting call and double knock-was slowly exterminated.
但随着密西西比三角洲的森林被砍伐殆尽，这种能制造出独特的“嘟嘟，嘟嘟”啄木声的啄木鸟已经渐渐灭绝了。
But as the big woods of the Mississippi Delta were chopped down, the woodpecker-with its distinctive tooting call and double knock-was slowly exterminated.
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