Cách sử dụng
"Get cracking" is an informal expression that means to start doing something quickly or to start working hard. You can use it when you want to encourage someone to begin a task or to hurry up with something. For example, if you were trying to motivate your friend to finish their homework, you might say, "Come on, let's get cracking on that assignment!" It is more commonly used in spoken language rather than written language.