영단어 암기 3개월! 28일차1 [영단어] 하루에 5개이상 Study Challenge - 10/26/2020 1. to stay on top of something - to stay in control, and not get behind or let your work pile up - i.e.) I've got so much work on at the moment that it's difficult to stay on top of it all 2. to be on the ball - this phrase comes from the sports field. when you are on the ball, you have to be alert and sure not to make any mistakes - i.e.) Sam's great - he's really on the ball and never makes an.. 2020. 10. 27. 이전 1 다음