doubly

副词 doubly:

1. to double the degree
   同义词：double, twice
2. in a twofold manner
   同义词：in two ways

1. The family is doubly troubled; they have no money and now their father is ill.
   那户人家真是祸不单行，他们本来就穷，现在他们的父亲又生了病。
2. I am doubly indebted to you-- for the party and for your generous gift!
   你为我操办送礼会并赠送厚礼对你的情意，我永远也报答不了。

dou.bly

adv.（副词）
To a double degree; twice:
加倍地；双倍地：
例句：
doubly protected; made doubly certain.
两重保护；双倍肯定

In a twofold manner.
双重地：用双重的方式