| 词组 | sit up |
| 释义 | sit up 1. sit up to move into a sitting position after you have been lying down: ▪ Wendy sat up in bed and stretched. ▪ Are you able to sit up and eat something? sit-up n C an exercise for your stomach muscles, in which you sit up from a lying position while keeping your feet on the floor: ▪ Sit-ups are best done with your hands behind your neck. 2. sit up to make your back straighter when you are sitting: ▪ As the news comes on TV, Ken sits up in his chair and starts watching. ▪ Sandie forced herself to sit up straight during the interview. 3. sit up to stay awake and not go to bed: ▪ I thought I'd sit up and wait for him to come home. ▪ They sat up late into the night talking about old times. ■ SIMILAR TO: ↑stay up 4. sit up and take notice to suddenly start paying attention to someone or something: ▪ People are starting to sit up and take notice about the dangers of genetically modified foods. |
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