galactite

例句：

1. 1. The baby was born with a rare condition that made him unable to digest lactose.
   这个婴儿出生时患有一种罕见的病症，使他无法消化乳糖。
2. 2.The doctor discovered the presence of galactite in the patient's urine.
   医生在患者的尿液中发现了乳糖石的存在。
3. 3.The galactite formation is often associated with the growth of bacteria in the gut.
   乳糖石的形成通常与肠道细菌的生长有关。