Central to the operation is a mile-deep well, dug originally to explore for oil.
那次行动的重点是一口原本为勘探石油而挖的一英里深的井。
Objective: To explore for effective method of health education, improve the rate of pure breast-feeding.
目的：探讨有效的健康教育方法，提高纯母乳喂养率。
Objective: To explore for effective method of health education, improve the rate of pure breast-feeding.
目的：探讨有效的健康教育方法，提高纯母乳喂养率。
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