pinpoint的词源

英文词源

pinpoint (n.)

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.

中文词源

pinpoint：确定，指出

pin,针，point,点。比喻用法。

该词的英语词源请访问找单词词源英文版：pinpoint 词源，pinpoint 含义。