with one's help和with tue help of sb

one里是形容词性物主代词,Sb里是宾格.基本都是这样,分析一下句子关系就知道了
再问： 如果用with one's help和with tue help of sb造句、“在他们的帮助下”怎么说
再答： 前者：With their help; 后者：With the help of them.