Price quotes usually assume double occupancy, with supplements for singles ranging from 20% to 50% of the double-occupancy rate.

报价以双人房为基准，如单人住宿要在双人房的基础上增加20% - 50%的费用。

youdao

The book also proposes cost-effective, hazard-specific infrastructure: for example, schools that double up as cyclone shelters or roadways that double up as drains.

该书还建议提供有成本效益的、针对具体灾害的基础设施，例如可以用作飓风避难场所的学校或可以用作排水通道的道路。

youdao

And we find the same thing for these two atoms here, it's not actually a double bond, it's somewhere between a single bond and a double bond.

而且我们发现这两个原子的情况是一样的，它其实不是一个双键，而是介于单键与双键之间的。

youdao

New irrigation methods are expected to double wheat production while using one-third of the water required for full irrigation.

VOA: special.2010.02.08

He serves as something like a complicated double for the young, unpublished, and as of yet unproductive poet himself.

他就像一个复杂的替身，是那些年轻的，还没出版诗歌或是不多产的诗人自己的替身。

耶鲁公开课 - 弥尔顿课程节选

And we find the same thing for these two atoms here, it's not actually a double bond, it's somewhere between a single bond and a double bond.

而且我们发现这两个原子的情况是一样的，它其实不是一个双键，而是介于单键与双键之间的。

麻省理工公开课 - 化学原理课程节选

He was offered a double shift for double pay, and jumped at the chance of earning some money towards the greengrocer's shop he wants to open.

BBC: Miners clock off 69-day shift from hell

Remember the Chinese fable of the mighty emperor who agreed to give a wily supplicant one grain of rice for the first square on a chess board, double that for the second square, double again for the third and so on, before he realised that he would be giving away his whole kingdom's supply before the board was half-finished.

ECONOMIST: Eventually, bigger means different

You know, if you have almost one out of five men in certain communities that are out of work - and that's double the rate for white men or more than double the rate - you would think that would make news.

NPR: 12 min 17 sec