你能听到铃在响吗?
电铃在床的旁边。
The standard statistical approach to risk management is based on a “bell curve” or normal distribution, in which most results are in the middle and extremes are rare.
在统计学中,风险管理的标准方法是基于“钟形曲线”(或曰正态分布)的,绝大多数结果分布在中间,极端情况十分罕见。
There is also an image of a bell inside a copper-colored inkwell on the front of the note.
VOA: special.2010.11.15
An unreinforced response is when the bell goes on but there's no food.
非强化反应是有铃声但却没食物的时候。
"In my book I call this the empathy bell curve. And part of what I'm exploring in the book is what determines where an individual scores on this empathy bell curve.
VOA: special.2011.08.10
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