| 词组 | pin down |
| 释义 | pin down 1. pin down sth • pin sth down to understand or explain exactly what something is or what it is like: ▪ The company is keen to review its recent performance and pin down some of the problem areas. ▪ Bobby heard a voice at the door which brought back some distant memory, but he couldn't quite pin it down. be difficult/hard/impossible to pin down ▪ It is estimated that there are about 5 million illegal immigrants in the US, but the numbers are impossible to pin down. ■ SIMILAR TO: ↑identify 2. pin sb down • pin down sb to make someone give you exact details or make a definite decision about something, especially when they have been trying to avoid doing this: ▪ I never know where Bernard is these days - it's impossible to pin him down. + to ▪ They've been promising to meet us for ages, but I can't pin them down to a date. ■ SIMILAR TO: ↑nail down 3. pin sb down • pin down sb to force someone to stay in a particular position by holding them down so that they cannot move: ▪ He had the child pinned down on the grass. 4. pin down sb • pin sb down to prevent enemy soldiers from escaping by surrounding the area where they are: ▪ The plan was to head straight for Kuwait City, and pin down the Iraqis there. |
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