a change in a process or situation, usually when it gets worse for a short time before it gets better; a temporary problem 变故；暂时性问题 a temporary blip 暂时的麻烦
a short high sound made by an electronic device （电子装置发出的）短促尖声 a small flashing point of light on a radar screen, representing an object 目标标志（雷达屏幕上代表目标的光点）
Word Originlate 19th cent. (denoting a sudden rap or tap): imitative; the noun sense ‘unexpected deviation’ dates from the 1970s.