The first part of the race is not really difficult; it's the final three miles over rough and hilly ground that will separate the men from the boys.
比赛的第一阶段并不很困难，只是在最后三英里的不平整的山地上才分出高低强弱。
The ground of the University was hilly;
这条高速公路依丘陵地形起伏修筑。
The ground of the University was hilly;
这条高速公路依丘陵地形起伏修筑。
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