Unlike, say, an electric milk float, EVs are astonishingly silent, with just the wheel rumble and an occasional electric whine to alert you to their approach.
与像电动牛奶车之类的不同，电动车行驶起来出奇地安静，只听得见车轮的辘辘声，还有就是偶尔提醒你前方障碍物时所发出的电动呜呜声。
After the alert, a shadowy figure told Torres he must never talk about the incident and he duly kept silent for more than 30 years.
在这次警报之后，一位秘密人士告诉托雷斯，他永远也不许谈及这次事件，就这样他一直沉默了三十多年。
"Okay," he called to the room at large, and all noise ceased: Fred and George, who had been cracking jokes for the benefit of those nearest, fell silent, and all of them looked alert, excited.
他对房间里所有的人宣布，嘈杂声立刻平息下来，正在给周围人说笑话的弗雷德和乔治也不做声了，一个个都显得警觉而兴奋。
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