On the ground, its wings collapse in two and fold along its sides.

在地面行驶时，它的双翼可以折叠成两部分收缩在两侧。

youdao

From 2003 to 2009, found a new study, the rate of deforestation in two gold-mining areas increased six-fold alongside record-setting leaps in the international price of gold.

自2003年到2009年，一项研究发现，在两个金矿区的水土流失率随着国际金价创纪录的增长也增加了六倍。

youdao

The problem with quakes in the central or eastern us is two-fold: Seismic waves travel farther in the colder, older crust under that part of the country, so the damage can be more widespread.

美国中部及东部的遇到的有关地震的问题是双重的：地震波在这部分古老而寒冷的地面上传播的较快，所以危害传播得更广。

youdao

And again,it is two-fold: one is,we want to help our colleagues in Mexico, but it does have an impact on safety and security in the United States."

VOA: standard.2009.03.24

Plato's critique of Homeric poetry in the Republic is two-fold; it is both theological and political.

柏拉图在《理想国》中,批评荷马诗学有两层含意;,同时是有关神学与政治学。

耶鲁公开课 - 政治哲学导论课程节选

If it goes on for ten years that means that the -it'll double in seven years, so it'd be going up like two and a half fold.

如果按照此速度过上十年就意味着,七年内价格将会翻倍,所以价格应该会上涨到两倍半

耶鲁公开课 - 金融市场课程节选

Not only is the bad news priced in for global assets in 2012, but they are priced in two fold.

FORBES: For Some Investments, Too Much Bad News A Good Thing

This was now the decisive factor in our two-fold barrier to entry.

FORBES: Move up http://i.forbesimg.com t Move down

Gestational diabetes - which affects four in 100 pregnancies - was associated with a two-fold increase in the risk of autism, while bleeding in pregnancy was alleged to carry an 81% increased risk.

BBC: Problem pregnancy 'autism risk'