哈斯凯尔说，这一范围主要是那些想要在相对短的时间内检测到人身体改善的研究人员们，对相比较而言更健康的大学生们所做的研究。
Haskell says this range is based primarily on studies of comparatively more fit college students by researchers who wanted to detect improvement over comparatively shorter time periods.
史蒂夫，琼和凯尔。万德。齐尔斯一家人在哈奇家的后门廊上。
Steve, Joan and Kyle Vander Ziels on the back porch of the Hatches'.
凯尔。万德。齐尔斯和他的一只鸡在哈奇夫妇的后院里。
Kyle Vander Ziel with one of their chickens in the back yard of the Hatches.
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