老实说，事情就是这样发生的——克莱尔会支持我的说法。

Honestly, that's exactly what happened - Claire'll ___back me ___up.

我是否被迫让她生活在这样的谎言中，并支持她丈夫过着双重生活？

Was I obliged to leave her to live such a lie and ___back her husband ___up in the double life he was living?

尽管有指控，几名目击者愿意支持他的说法。

Despite the accusations, several witnesses were willing to ___back ___up his story.