to work hard and focus on something
কঠোর পরিশ্রম করা এবং কিছুতে মনোযোগী হওয়া
"If you want to succeed, you have to put your nose to the grindstone."
"যদি আপনি সফল হতে চান, তাহলে আপনাকে কঠোর পরিশ্রম করতে হবে।"
to act unfairly or say something hurtful
to make a serious or formal promise
someone or something so good that it’s difficult to replace
to have a personal reason to complain or criticize
to increase speed
to finally understand or accept the truth or a new idea