...：体重与死亡率呈现U字型关系，也就是说，当人的体重太重或太轻时，疾病发病率与死亡率都会提升，「理想体重(desirable weight) 是一个人最健康且死亡率最低的最佳体重，且不同身高的个体存在不同的「理想体重。
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Maintain a desirable weight. Balance energy (calorie) intake with energy output. Exercise and other physical activity are essential.
保持一个合理的体重。平衡能量(卡路里)的摄入和输出。锻炼或者其他体力的活动是必须的。
While the studies reported were still incomplete, it seemed to the conferees to be desirable, to minimize reactions, to avoid highly branched dextrans and preparations of high molecular weight.
尽管报道的研究不是很完善，但是对参加会议的人来说，减少不良反应，避免高度支葡聚糖和高分子配制剂看起来是可取的。
Sewall Wnight thought it desirable to weight each observation directly as the pollen frequency.
赛沃尔·劳埃特认为把每次观测直接加权作为花粉频率是可取的。
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