Estimates range from 3 million to 200 million.

据估计，这个数字是从300万—2亿不等。

Some estimates range from 100,000 to over a million volcanic features on Venus.

一些学者估计金星火山超过1百万座。

Estimates range from 500 years to forever.

估计范围从 500 年到永远。

Dendrochronologist estimates range from 80,000 to 1 million years.

树木年代学家的估计范围为 80,000 到 100 万年。

The estimates range from 200 million to 500 million.

估计范围为 2 亿至 5 亿。

Our estimates range between 150,000 square kilometers to one million square kilometers.

我们的估计范围在 150,000 平方公里到 100 万平方公里之间。

It has relatively few native speakers – estimates range from 2 million to 18 million – but has spread across the continent as a lingua franca.

以它为母语的人相对较少——估计在200万到1800万之间——但它已经作为一种通用语传遍了整个欧洲大陆。

This is why no one knows exactly how many people were murdered, though contemporary estimates range from about 4,000 to 15,000.

这就是为什么没有人知道究竟有多少人被谋杀，尽管当代估计在 4, 000 到 15, 000 之间。

There are no official numbers for the death toll in the Nanking Massacre, though estimates range from 200,000 to 300,000 people.

南京大屠杀的死亡人数没有官方数字， 但估计在 200,000 到 300, 000 人之间。

Estimates range from tens to hundreds of thousands of square miles, which seems like a lot, but the Sahara Desert alone is over 3 million square miles in area.

估计需要几万 至几十万平方英里的土地，这看起来很多，但光是撒哈拉沙漠 就有三百万平方英里的土地。

Those scientists tried to shape the monkeys’ tongues and lips to approximate what a bark would look like, and then estimated the whole range of movement.

那些科学家试图塑造猴子的舌头和嘴唇以近似树皮的样子，然后估计整个运动范围。