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ray BEAMreIn [C]a narrow beam of light, heat, etc. travelling in a straight line from its place of origin光线，射线，热线The sun's rays streamed through the gap in the clouds.阳光穿过云朵缝隙照下来。Light rays bend as they pass from air to water.光线从空气进入水时产生折射。(fig.) The news of her safe arrival was a ray of sunlight (= the only good thing) in an otherwise gloomy situation.她平安到达的消息给原本阴郁的气氛带来一线阳光。(fig.) Our new secretary is a real ray of sunshine (= a happy person).我们的新秘书是个乐天派。A ray is also a small amount.一线，一丝，一点点，些许There was nothing I could do to offer her even the smallest ray of comfort.我什么也无法做，即便最小的安慰也无法给她。There's still a ray of hope that the missing child will be found alive.失踪的孩子生还还有一丝希望。In science fiction stories, a ray gun is a gun which produces rays that kill people or make them unable to move.(科幻小说中的)激光枪，射线枪
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