They fastened their eyes on the distant ship. [=they looked at it steadily]他们的目光紧盯着远处的那条船。

She fastened her attention on the problem. [=she gave all her attention to the problem]她把注意力全部集中在那个问题上。

They had fastened the blame on the wrong man. [=they had blamed the wrong man]他们怪错人了。

She fastened [=pinned] (all) her hopes on getting the job.她把一切希望都寄托在获得那份工作上。