[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]
Tanaka JP-EN Corpus w/ local updates (ตัวอย่างประโยค)ตัวอย่างประโยคจาก Tanaka JP-EN Corpus