高根：孩子们在积极的时候学得更好。

Kogan: Kids learn better when they're more positive.

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娜塔莉•高根懂得追求快乐——在更年轻的时候，她为快乐而生。

Nataly Kogan understands the pursuit of happiness-in her younger years, she lived for it.

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合理、完善的治疗操作结合显微超声技术和热牙胶充填可有效提高根管再治疗的成功率。

The success rate of root canal retreatment can be increased by proper management with micro-ultrasonic technique and warm vertical technique.

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