为应对慢性眼疾日益沉重的负担，世卫组织目前正在制定针对糖尿病性视网膜病变、青光眼、年龄相关性黄斑变性和屈光不正的政策和准则。

In response to the increasing burden of chronic eye disease WHO is now developing policies and guidelines for diabetic retinopathy, glaucoma, age-related macular degeneration and refractive errors.

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但是联军指挥官坚称，他们的轰炸目标政策和战斗准则皆未改变，战机出击比率也一直维持。

But coalition commanders insist that their targeting policy and the rules of engagement are unchanged and that the sortie rate has been maintained.

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制定国家政策和饮食准则时，需要根据当地情况考虑这些建议。

These recommendations need to be considered when preparing national policies and dietary guidelines, taking into account the local situation.

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