They did blood tests on him for signs of vitamin deficiency.

他们给他做了血检，看他是否有维生素缺乏的迹象。

Diseases associated with protein and carbohydrate deficiency cause many deaths among young children.

与缺乏蛋白质和碳水化合物相关的疾病造成许多幼龄儿童的死亡。

brain damage caused by a deficiency of vitamin B12.

由缺乏维生素B12造成的脑损伤。

The most serious deficiency in NATO's air defence is the lack of an identification system to distinguish friend from foe.

北约空防的最大缺陷就是缺乏能够辨别敌友的识别系统。