the source of milk的用法和樣例：
例句
- According to experts, these two standards, the milk is the most important reference, which is the source of all problems.
據專家介紹，在這兩個標準中，奶源是最重要的參考指標，它是一切問題的源頭。 - Allergens to which the infant is sensitized can be conveyed in the milk but the presence of such allergens is rarely a valid reason to stop breast-feeding.
雖然嬰兒對于人奶的變異源過敏的話能更換奶源，但是變異源的存在很少會成為終止母乳喂養的原因。
