Using the WFH or WFL comparison method on a random sample of children will enable you to assess the nutritional status of the population as a whole.是什么意思_Using the WFH or WFL comparison method on a random sample of children will enable you to assess the nutritional status of the population as a whole.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句