这年秋天，若把国内外的仿制品通通计算在内，呼拉圈的总销售量估计有几千万个。

In the fall of this year, if all domestic and foreign imitations are counted, the total sales volume of the hula hoop is estimated to be tens of millions.

youdao

第二个财务计算是你的估计的收益。

The second financial calculation is your estimated benefit.

youdao

为了了解更多，研究者决定探究一下孩子们的数学成绩和他们与生俱来的无需计算就能估计与比较数量的能力之间的关系。

To learn more, researchers decided to explore the relationship between children's mathematics achievement and their innate ability to estimate and compare quantities without counting.

youdao

But, remember, this is a very rough estimate.

但，记住，这只是一些粗糙的计算估计。

麻省理工公开课 - 固态化学导论课程节选