无论是内在的还是外在的原因，孩子往往达不到两种家庭教育方式（中美两种教育方式——译者注）的极致状态，半途而废，付出了高昂的代价。

There's a high cost in kids who, for internal or external reasons, fall by the wayside in the extremes of both parenting approaches.

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要达到减肥的目的，医患双方都要付出很大努力，而且还有很多外在因素发挥作用。

However, it takes strong dedication on the part of the both the doctor, the patient, and many other outside factors to attain weight-loss goals.

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