发出声音：发出响亮的声音，可以是演奏乐器、计数节拍或大声发言等。
大声发言：以响亮的声音表达自己的观点或意见。
sound off //
动词 to proclaim loudly, as in venting one's opinions, grievances, etc 力陈己见; 发泄委屈
喊齐步走口令
奏序曲；奏军乐
吹号，吹起床号(或熄灯号、冲锋号等)：
报数
... sound note 声音附注 sound off 奏序曲 sound pollution 噪音污染 ...
... sound on 解除静音 sound off 静音 auto list when review 检视历程时自动开启历程列表 ...
除了以上提供的方法，还可以进行头脑风暴(brainstorming)，看默片(sound off)，看—写 (watch-write)，小组讨论group discussion)，影评(film review)等教学活动，使课堂活动更加丰富多彩。
... pursue » 追求 sound off » 关闭声音 connected to an intrancelluiar system of kinases » 连接到一个intrancelluiar系统激酶 ...
With the sound off, he might have looked like a politician running for office.
关掉声音，他可能看起来像一个政客在竞选公职。
Sound off in the comments.
在评论中发表你的意见吧！
He may still sound off from the backbenches.
不过也许他仍会在后座议员席上高谈阔论。
That is sound recorded with equipment placed underwater near the busy shipping lanes off Vancouver Island in Canada.
VOA : special.2011.06.29
I'm going to give an example or example of that--of the train kind of going by you, and the sound heading off in the other direction.
我将会举个例子,比方说,那种火车经过你时,它的声音会从别的方向传来
聆听音乐课程节选 : 耶鲁公开课
So Musorgsky knew this law of acoustics because he was a professional musician and was playing off of it to create this rather unusual and remarkable musical sound-scape here.
穆索尔斯基明白这个声学规律,因为他是位专业的音乐家,他通过制造这非凡卓越的音乐场景,表达了这个规律
聆听音乐课程节选 : 耶鲁公开课
(MOVIE SOUND) Sam Worthington, fresh off his star-making role in the global sci-fi smash "Avatar."
VOA : standard.2010.04.08
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