chén hūn dìng xǐng
morning and evening visits to parents
cf 昏定晨省[hun1 ding4 chen2 xing3]
晨
chén
morning
昏
hūn
old variant of 昏[hun1]
定
dìng
to fix; to set; to make definite
省
xǐng
(bound form) to scrutinize
