I can't help doing it.

我忍不住这样做。

I can't help doing anything for you, not asking for return, only because I love you.

我可以为你做任何事，不需要回报，仅仅因为我爱你。

I can't help doing anything for you, not asking for return, only because I love you.

我不能禁不住做任何东西为您，不请求回归，只有因为我爱你。

I can't help but wonder what someone with your credentials is doing in a place like this.

我就是不明白了，你有这样的学历背景，是什么原因使你被关进牢里来了。

If you can't find a relevant company or cause, offer to help out your favorite charity by doing something that's job-related.

如果你找不到任何相关的公司或工作，那就去你最喜爱的慈善机构做一些和工作相关的事情。