a tiny dot or point 小点 a pinpoint of light from a torch. 电筒发出的小亮点。
adjective [attrib.]
absolutely precise; to the finest degree 精确的;精细的 this weapon fired shells with pinpoint accuracy. 这种武器发射炮弹的精确度非常高。 ■tiny 极小的 a pinpoint hole. 小孔。
verb
[with obj.]find or locate exactly 精确地对准…的位置,瞄准;准确地查找 one flare had pinpointed the target. 一颗照明弹精确地指明了目标。 it is difficult to pinpoint the source of his life's inspiration. 很难准确地查明他生活的灵感之源。