also pin-point, "point of a pin," 1849, from pin (n.) + point (n.). Taken into aeronautics in sense "place identified from the air," hence verb meaning "locate precisely" (1917), which originally was aviators' slang. Related: Pinpointed; pinpointing. As an adjective, "performed with precisional accuracy," 1944, originally of aerial bombing.
实用例句
1. He was able to pinpoint on the map the site of the medieval village.
他能在地图上准确找出那个中世纪村庄的位置。
来自《权威词典》
2. There is only a pinpoint of light in the cave.
山洞中只能见到一丝光线.
来自《简明英汉词典》
3. These missles can be fired with pinpoint accuracy.
这些导弹可精确地命中目标.
来自《简明英汉词典》
4. Objective To discuss the application of CT fluoroscopy and Pinpoint guided percutaneous transthoracic biopsy in thorax.
目的:探讨CT透视及pinpoint导引下胸部活检术.
来自互联网
5. It was almost impossible to pinpoint the cause of death.
