[孜孜不倦, zī zī bù juàn, ㄗ ㄗ ㄅㄨˋ ㄐㄩㄢˋ]lit. diligent and without slacking (成语 saw); praise for hard and concentrated effort; assiduous (study); concentrating#36673[Add to Longdo]
[あぐねる, aguneru](v1) (uk) to tire of; to lose interest in; to be too much for one; to find unmanageable; to be beyond one's control; to not know what to do with[Add to Longdo]