矿工们抗议时，公司雇佣的平克顿探员在一旁监视。

The miners were watched by the ___Pinkertons hired by the company during their protest.

矿主雇佣了平克顿侦探来监视罢工的工人。

The mine owner hired ___Pinkertons to watch the striking workers.

这家银行雇佣平克顿侦探社来加强安保措施。

The bank hired the ___Pinkertons to enhance their security measures.