The engine of the train left the rails at a curve.

火车头在拐弯处脱轨。

《新英汉大辞典》

The rapid growth results from the fact that the majority of the people fall into the middle of a left-skewed bell-shaped curve.

之所以迅速增长，是因为大多数人都陷入了左弯的钟形曲线的中间。

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But it could be that, well, imagine that my vector field accidentally goes in the opposite direction then this part of the curve, while things are flowing to the left, contributes negatively to flux.

的确有可能出现往两个方向流动的情况，可以想象到，这一小部分往相反方向流动，当流体向左流时，就只能算作负值了。

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People have referred to this as a J shaped curve with this little up tick in the left hand side and people--some people have sort of said, well maybe it's not so bad to be overweight because it's not so good to be underweight as well and that's a problem.

人们把这称为J形曲线,最左边有一个向上的弯钩,因此就有人说,也许超重也不一定就是一件坏事,因为体重过轻也不是什么好事,这是个问题

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"I had to return this product because it is only for bananas that curve to the right and I can only find bananas that curve to the left, " a one-star reviewer complained.

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Both buyers and sellers then have the parameters to agree on a fair price, which Painter says typically settles in the lowest quartile of all transactions (the left side of the bell curve) compared to the lowest 6 percent of transactions before the change.

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In the 1950s, when the doctrine was first elucidated, and in the 1960s and 1970s, the Phillips curve gulled central bankers left and right, above all at the U.S. Fed.

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