can not but与 have to 区别

can not but与 have to 区别 To Have,But not to do nothing but do 与have no choice but to do 与can't but do I can not but think so.和I have to think so.的区别? I can resist myself not to seek you,but I have been thinking of I have not much to say but being afraid that tears can not stay.I have not much to say but being afraid that tears can not stay.同志们帮我翻译这句话好吗? You have conquered me,but do not belong to me and asked me how can you not guess what? To have I ,but not to hold To have I But not to hold I 翻译But it does not have to! Could not help but have to Bob said he was going to jion our club but he did not .He___his mind.A..can not have changedB.would not have changedC.must have changedD..should not have changed All birds have wings,but not all birds can fly I have four feet.But I can not I love you but I can not get it out.I have to keep it invoiced翻译.要准确~谢~ 英语翻译life may have to be short ,but there is no season why it can not be beautiful to have,but not to hold 的中文意思 To have but not to hold 什么意思?谢谢 求to have! but not to hold!的中文意思?