他观察画家、登山者、舞者、音乐家和外科医生，记录他们的行为并随机访问。
He observed painters, rock climbers, dancers, musicians, and surgeons, taking surveys and later paging them at random intervals.
让全家参与到户外运动中去，比如远足、登车登山、健康舞、篮球甚或轮滑。
Involve the whole family in activities like hiking biking dancing basketball or roller skating.
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