It is estimated that 32 million trees are infected.

据估计，有3200万株柑橘树被感染。

It is estimated that a third of its vocabulary is borrowed.

据估计，有三分之一词汇属于外来借用语。

It is estimated to have lived around 60 million years ago.

据估计，它生活在大约 6000 万年前。

It is estimated that nearly 500,000 people have perished since the war began.

据估测，自战争开始以来，已有50万人因此死亡。

But it is estimated to cost hundreds of thousands of British pounds a year.

但估计每年要花费数十万英镑。

It is estimated to affect one to five percent of children around the world.

据估测，全球有1%-5%的儿童受到了弱视的影响。

It is estimated that over a million soldiers were treated with her x-ray units.

据估计，有100多万士兵接受了她的X光治疗。

And in fact, it is estimated that three percent of all of us have bipolar.

事实上，据估计，全世界有百分之三的人患有躁郁症。

It is estimated that 25% of all methane released into the atmosphere comes from farm animals.

据统计，所有的甲烷中有25%是由农场动物释放进大气的。

It is estimated that about 25,000 polar bears are still living in their natural habitat.

据估计，大约有25000只北极熊仍然生活在它们的自然栖息地中。

It is estimated that some 5,000 people were detained at the ESMA during the dictatorship.

据估计，在独裁统治期间，约有 5000 人被拘留在海军机械学校。

It is estimated that around 40 percent of the country's population lives in poverty.

据估计，该国约40%的人口生活在贫困之中。

It is estimated that there are about 605 million barrels of oil in the reserve.

据估计，该储备中的石油储量约为6.05亿桶。

It is estimated that the growth rate will be less than 1% by 2020.

预计到2020年，增长率将低于1%。

And it is estimated – or predicted – that by 2050 there will be 4 billion cars.

预计，2050年汽车数量将达到40亿辆。

It is estimated that every second, about 100 lightning strikes hit the surface of the Earth.

据估计，闪电大约每秒钟雷击地球表面100次。

The human population in 1987 was 5 billion and it is now estimated at 7.6 billion!

1987年的总人口是50亿，而现在估计有76亿！

It is estimated that a direct hit would be enough to send a small car flying.

据估计要是被直接击中，其力量足够让一辆小轿车飞起来。

In rich countries, minting, sorting, storing and distributing it is estimated to cost about 0.5% of GDP.

在发达国家，铸造、分拣、储存和分配这些成本估计约占GDP的0.5%。

It is estimated that about 100 million sharks are killed by people every year due to fishing.

每年因人类捕渔致死的鲨鱼，大概有一亿条。