解释下列句中划线的词。

故不为苟得也                                       

如使人之所欲莫甚于生                               

所恶有甚于死者                                     

万钟于我何加焉                                     

行道之人弗受                                       

是亦不可以已乎                                     

故患有所不避也                                     

向为身死而不受