伊拉克和阿富汗已经使五角大楼的资源告急(美国与阿富汗相距遥远，在那里缺兵少友，因此可能输掉对阿的战争)。

Iraq and Afghanistan (another far-off place where the United States, short of troops and Allies, may be losing a war) have stretched the Pentagon's resources.

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目的：研究少汗性外胚叶发育不全引起先天缺牙的ED1基因突变。

Objective: To detect ED1 gene mutation in three hypohidrotic ectodermal dysplasia (HED) nuclear families.

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