You can tell when you are over the top and on the downward slope, by asking yourself a number of questions.

你可以通过问自己一些问题来判断自己什么时候越过了顶峰，什么时候处于下坡。

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Above them, on a steep slope, a sheep herder sang to his sheep. Nearby, a bent-over young girl picked moroho shoots – wild green vegetables.

抬头望去，陡峭的斜坡上，一个牧羊人对着羊群歌唱，附近一位年轻姑娘正弯腰捡一种当地野生绿色蔬菜。

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The budget constraint is going to have a different slope to it and preferences will be different over this horizon between consumption then and consumption now.

预算约束线的斜率会有所不同，人们对即时消费和延期消费的偏好，也会有所不同。

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White, meanwhile, has been in commercials for Stride, Oakley, American Express and HP where he, as an individual, is featured over his on-slope skills.

FORBES: Is Shaun White The Most Successful Action Sports Star Of All Time?

Six Russian tourists have died and two others have been injured after their snowmobile flipped over on a ski slope in north-eastern Italy, reports say.

BBC: Italy: Russian tourists die in snowmobile accident

You base this on the slippery-slope argument: selected cases may grow into casual practice over time.

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