Moon's age从新月起算各种月相所经历的天数， 并以朔望月的近似值29.5日为计算周期。
婴儿在大约6个月龄时可以开始吃其他食物。
At about six months of age, an infant is also developmentally ready for other foods.
当然4月15日小月龄的蛾眉月加入了金星和水星的会合。
Of course on April 15, Venus and Mercury were joined by a young crescent Moon.
对于6 - 23月龄儿童，母乳也是能量和营养素的重要来源。
Breast milk is also an important source of energy and nutrients in children 6 to 23 months of age.
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