As far as I can judge, all of them are to blame.

依我看，他们都应承担责任。

《牛津词典》

Some people blame the smart phone for the tragedy, yet in fact people's weakening self-control and self-discipline are to blame.

一些人把悲剧归咎于智能手机，然而事实上，人们自制力和自律性的减弱是罪魁祸首。

youdao

Nothing can alter the fact that we are to blame.

错在我们，这是无法改变的事实。

《牛津词典》

Are climate changes real? If so,were human activities mainly to blame?

VOA: special.2010.01.19

but I find that, you know, just kind of market participants are more to blame than the accounting per se in those examples.

但是我发现，在这些例子当中市场参与者比会计本身更应该受到责备。

美国的会计丑闻 - SpeakingMax英语口语达人

Prosecutors are investigating why so many modern buildings were flattened by the quake and whether flawed construction materials were to blame.

VOA: standard.2009.04.12

Rising fuel prices are to blame for the hefty fee, says one industry expert.

CNN: Allegiant Air adds carry-on fee

It is the public and the banks and the insurance companies who are to blame.

BBC: Your Comments: How Safe Is My Money?

Our policies are to blame for making it harder than it has to be.

FORBES: Connect