step up to the ˈplate(especially NAmE)to do what is necessary in order to benefit from an opportunity or deal with a crisis开始行动，采取措施（以抓住机会或应对危机）It's important for world leaders to step up to the plate and honor their commitments on global warming.对世界领导人来说，重要的是开始行动，兑现他们在全球变暖问题上的承诺。 |