汤姆跑的速度是迈克的二倍。

Tom runs twice as soon as Mike.

youdao

黄石河飞流直下大峡谷谷底，形成的“下黄石瀑布”落差高达308英尺（94米）——是尼亚加拉大瀑布的二倍。

The Lower Falls of the Yellowstone River drops a stunning 308 feet (94 meters) to the canyon floor below—twice as big as Niagara Falls.

youdao

这是一种性别决定的方法，叫做单倍二倍体。

This is a method of sex determination known as haplodiploidy.

youdao

What probabilities are associated with thinking it's twice as likely they're going to choose Left than Right?

那么在选左是选右的可能性的二倍时,选择每个策略的概率是多少呢

耶鲁公开课 - 博弈论课程节选

Double that, times by two, this is the money I will be making in one month.

再翻倍，乘以二，这将是我在一个月赚到的钱。

哈佛公开课 - 幸福课课程节选

Cereal would be--a serving of cereal would be about the amount that would fit in a wine glass, but people think that you fill up a bowl and that becomes a serving, but a typical amount of cereal that people serve themselves might be two or three times what the ordinary size is.

这是一餐份量的麦片,放在酒杯里大概那么多,但人们认为满满一碗才是一份,人们通常所食用的麦片,是原来大小的二到三倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选