您要查找的是不是：
- Hum the opening bars of your favourite tune. 哼一哼你喜爱的曲子的开头几个小节。
- microphone hummer 话筒蜂音器,传声器式蜂音器
- Speak clearly into the microphone. 对著话筒说清楚些。
- She continued to hum the song over and over. 她一遍又一遍地不断哼唱那支歌。
- The lecturer speaks through a microphone. 演讲者通过麦克风说话。
- He is talking into a microphone. 他正在对着麦克风讲话。
- He could hear the hum of the bees in the garden. 他听得见花园里蜜蜂的嗡嗡声。
- The only sound he heard was the hum of the machine. 他听到的唯一的声音就是那台机器的嗡嗡声。
- He used a microphone so that everyone could hear him. 他使用扩音器，使人人能听见他的讲话。
- A hidden microphone, as on a person's body or in a building. 隐形话筒，窃听器如放在人身体上或建筑物上的不让外人看到的麦克风
- Bees sip honey from flowers and hum their thanks when they leave. 蜜蜂从花中啜蜜，离开时营营地道谢。
- To supply with or transmit through a microphone. 通过话筒传送通过话筒提供或传送
- Charles makes things hum around that office. He's an excellent administrator. 查尔斯使那个办公室的气氛很活跃。他是个出色的行政人员。
- Things are starting to hum with activity. 气氛变得活跃起来。
- Plug in the microphone or no one will hear me. 请把麦克风插上，不然没人听得到我的声音。
- All around was a drowsy hum of insects. 到处是一片小虫的催眠似的嗡嗡声。
- When we make a speech, we often use a microphone. 我们讲演时经常使用麦克风。
- He can hear the hum of the bee in the garden. 他听得见花园里蜜蜂的嗡嗡声。
- The air of the ball began to hum. 舞会的气氛开始活跃起来了。
- An icon appears in the upper portion of the screen to indicate when the microphone is muted. 当对麦克风进行消音时，会在屏幕的上部出现一个图标。
