1 عمومی:: در طی روز، در طول روز، روزها
شبکه مترجمین ایران
1 general:: Phrase(s): by day [and] by night during the day; during the night. (Often used in simultaneous clauses for contrast.) • By day, Mary worked in an office; by night, she took classes. • Dave slept by day and worked by night.
McGrawhill's American Idioms And Phrasal Verbs