If a ski instructor begins lecturing on snowpack composition and meteorology, he will lose his students regardless of their aptitude for skiing.

 
  • 如果一個(gè)滑雪教練一開(kāi)始就講授高山生態(tài)學(xué)和氣象學(xué),學(xué)生們會(huì )跑掉,不論他們的滑雪的天分如何。
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