[こつこつはたらく(こつこつ働く);コツコツはたらく(コツコツ働く), kotsukotsuhataraku ( kotsukotsu hataraku ); kotsukotsu hataraku ( kotsukotsu hatara](exp, v5k) to work hard; to toil; to moil; to keep one's nose to the grindstone; to slug away[Add to Longdo]
[すすはらい, susuharai](n) (1) cleaning dust etc. from rooms; housecleaning; (2) (See 煤掃き) (the traditional Japanese end-of-the-year, 13th December) big house cleaning; spring cleaning (only not in spring)[Add to Longdo]