영단어 암기 13일차 썸네일형 리스트형 [영단어] 하루에 5개이상 Study Challenge - 01/12/2021 1. a sledgehammer (큰 해머) to crack a nut - using a proportionate (and probably ineffective) solution for a problem - i.e.) i can't understand why Charles is doing such drastic things 2. a smart cookie - a clever and quick-thinking person - i.e.) you're a really smart cookie, so you're sure to do well on the test if you study hard 3. a snowball effect (눈덩이 효과) - a series of events gain momentum an.. 더보기 이전 1 다음