North Atlantic hurricanes only account for about 11% of the world's tropical cyclones.世界只有上大约11%的热带气旋是北大西洋飓风

account for(在数量方面)占

Students account for 50% of our customers.

在我们的顾客中,学生占了一半。

Professor Emanuel is trying to figure out why this might be happening.伊曼纽教授正在设法找出原因

figure out算出；想出；解决；理解；断定

The boy can't figure out the algebra problems.

这个男孩做不出这道代数题。

I can't figure out why he quit his job.

我琢磨不透他为什么要辞掉工作。

So many they ran out of letters of the alphabet编号时英语字母都用完了

run out用尽；耗尽

We've run out of petrol. What a bore!

我们的汽油用完了.

Food supplies had run out towards the end of the trip.

在旅行快结束时，食物已经吃完了。