过去几年中销售量较原来的增加了四倍。

Sales have quintupled over the past few years.

《牛津词典》

1998年，其中一些国家的出口量已经是它们1990年出口量的两倍多，而进口量是1990年的五倍多。

In 1998, some of these countries already exported more than twice their 1990 volumes and imported more than five times their 1990 volumes.

youdao

在1760年到1850年之间，原棉进口量增长了230倍。

Between 1760 and 1850, the amount of raw cotton imported increased 230 times.

youdao

But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.

但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。

麻省理工公开课 - 固态化学导论课程节选

Clearly, this isn't twice that.

很明显这儿不是两倍的量。

麻省理工公开课 - 固态化学导论课程节选

So more than doubling the risk can certainly site to the population Now these kind of results show how important it is to do studies that don't group everybody in the population together.

由图可见,发病率差异量超过一倍,这些研究结果表明,在研究过程中分组的重要性

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选