HSK 3
Tā de chángwèi yìzhí bù tài hǎo.
His digestive system has never been great.
HSK 4
Chī tài là de dōngxi duì chángwèi bùhǎo.
Eating food that's too spicy is bad for the stomach.
HSK 4
Lǚxíng de shíhou yào zhùyì chángwèi jiànkāng.
Pay attention to your digestive health when traveling.