他推测人口在十年后可能会增加一倍。

He conjectured that the population might double in ten years.

《牛津词典》

明年，我甚至可能把我禁食的时间增加一倍。

Next year, I might even double the amount of time I spend fasting.

youdao

糖尿病使人早死的风险增加一倍。

Diabetes doubles a person's risk of early death.

youdao

If you double everything in the system, the temperature is not going to change, it's not going to double.

如果你把系统中所有的东西增加一倍，温度是不会变的，它不会跟着增加一倍。

麻省理工公开课 - 热力学与动力学课程节选

I mean that's obvious. The mass, if you double the amount of stuff the mass will double.

这是显然的，还有质量，如果你把系统中物质的,数量增加一倍，质量也会增加一倍。

麻省理工公开课 - 热力学与动力学课程节选