step up
举一反三
- 【单选题】He urged donors to ________ their efforts to send aid to Somalia. A: step on B: step up C: step off D: step down
- Which of the following are the synonyms of 'step in'? A: be involved in B: take part in C: step up D: intervene
- John, would you please _______ the main ideas of the<br/>text in five sentences? A: mess up B: step up C: come up D: sum up
- It’s not good for anyone to _____ painful memories. A: step up B: bundle up C: pass through D: dwell on
- To write a book report, your step is to pick up the book and start reading.