According to some estimates, 50 million acres of rain forest are cut down every year.
According to some estimates, 50 million acres of rain forest are cut down every year.
据一些人士估计，每年遭砍伐的热带雨林面积达5000万英亩。
According to some estimates, 50 million acres of rain forest are cut down every year.
据一些人士估计，每年遭砍伐的热带雨林面积达5000万英亩。