Tā měi ge lǐbàirì shàngwǔ dōu qù jiàotáng zuò lǐbài.
She goes to church for the service every Sunday morning.
Tips
usage
礼拜 'worship' came to mean 'week' because Christian services are held every seventh day, so 礼拜日 is literally 'worship day'. 星期日 is the standard word; in speech 礼拜天 and 星期天 are more common.