碘缺乏症可很容易以低成本预防。

Iodine deficiency can easily be prevented at low cost.

youdao

答：碘缺乏症是儿童期脑损伤的主要原因。

A: Iodine deficiency is the main cause of brain damage in childhood.

youdao

答：碘缺乏症是儿童期脑损伤的主要原因。

A: Iodine deficiency is the main cause of brain damage in childhood.

youdao