这一句Young people是主语，can accomplish是谓语动词，what they want是宾语从句（做canaccomplish 的宾语），through加上后面的部分（through...total commitment)是介词短语，做状语，表示通过什么方式来accomplish what they want(实现他们想要的目标）。through的宾语是一个稍为复杂的such...as...(比如说...)结构，as 除了管keeping themselves focused(集中注意力，全神贯注）之外，还管下面的approaching everything with total commitment(做每一件事都全身心地投...
