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- Hum the opening bars of your favourite tune. 哼一哼你喜爱的曲子的开头几个小节。
- The sewing machine hums busily. 缝纫机忙碌地轧轧响着。
- She continued to hum the song over and over. 她一遍又一遍地不断哼唱那支歌。
- 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 is answering the test paper busily. 他正忙着答考试卷。
- 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。
- He was busily employed in cleaning his shoes. 他忙著擦鞋。
- 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。
- Mother was busily cutting sandwiches. 母亲正在忙著切三明治。
- All around was a drowsy hum of insects. 到处是一片小虫的催眠似的嗡嗡声。
- 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。
- We hear the hum of conversation from the next room. 我们听到隔壁房间嗡嗡的谈话声。
- The woman busily collected the ripened reddish berries. 那妇女忙著采集成熟的淡红色的莓果。
- She heard the hum of voices in the house. 她听见了屋子里的嘈杂声。
- It is sometimes mistaken for a power supply hum. 有时候，亚音频会被错误的认为是电源交流声。
- There is hum or noise in the speaker output. 扬声器输出声带嗡嗡声或杂音。
- Now when I play CDs,you hum and tap your feet. 现在我放CD盘，你一边呼，一边用脚打拍子了。”
