The police pinned the robbery on the night watchman.警方认定这起抢劫案系值夜保安所为。

He always manages to pin [=fasten] the blame on someone else.他总是设法把过错推给别人。

Many cancer patients are pinning their hopes on a new drug that is now being developed.许多癌症病人正寄希望于一种正在研制中的新药。

You shouldn't pin all your hopes on getting the job.你不能把所有希望寄托在得到这份工作上。