冒牌社会福利工作员不断坑害独居老人。

Bogus social workers have been preying on old people living alone.

帕姆从未了解到有些人专门坑害那些年轻的离家出走者。

Pam had never learned that there were men who preyed on young runaways.

我特别关注一些商业研究，我听说过很多医药公司赞助的研究坑害病人的例子。

I'm particularly concerned about commercial studies. We have many examples of how company-led research led us astray.