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dotHdBt, $dB:tn [C]a very small round mark小圆点The full stop at the end of this sentence is a dot.这句句子最后的句号是一个小圆点。Her skirt was blue with white dots.她的短裙蓝底白点。The stars just look like thousands of tiny dots of light.星星看上去就像成千上万的点点灯光。By the time I turned round to wave, Mum and Dad were two dots on the horizon.当我转身想挥手的时候，母亲和父亲的身影已是地平线上的两个小点了。Dots are also the short sounds or flashes of light used with DASHES (= longer sounds or flashes) when sending messages in MORSE CODE.摩尔斯电码中代表短声的圆点If someone or something arrives on the dot, they arrive or happen at exactly the stated or expected time.准时;在规定时间The plane landed on the dot (of two o'clock).飞机2点准时到达。(Br and Aus infml dated) My ancestors left Spain generations ago, back in the year dot (= a very long time ago).我的祖先几代以前就离开了西班牙，那是很早以前。(specialized) A dot-matrix printer is a computer printer that forms letters, numbers and other symbols from dots.点阵式打印机
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