tā / hē / niú nǎi / hòu / zǒng shì / fù zhàng / jiǎn chá / hòu / cái / zhī dào / zì jǐ / yǒu / rǔ táng bù nài zhèng

她喝牛奶后总是腹胀，检查后才知道自己有乳糖不耐症。

She always felt bloated after drinking milk and only learned after an examination that she had lactose intolerance.