So, imagine taking two IgG's, turning one upside-down and then they're hooked together.

想象一下,有两个IgG分子,将其中一个倒置,那么两个分子将会相互钩住

耶鲁公开课 - 生物医学工程探索课程节选

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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