1 عمومی:: خیلی عالی، خیلی خوب، بسیار عالی
شبکه مترجمین ایران
1 general:: Phrase(s): someone’s level best one’s very best effort. • I will do my level best to find your husband. • Don’t go to a whole lot of trouble. Your level best is good enough.
McGrawhill's American Idioms And Phrasal Verbs
2 general:: see under DO ONE'S BEST.
American Heritage Idioms