Users could not only learn and work by txt information , but also by static or moving picture and sound , and join or modify the demonstration of information too 人们不仅可以通过文字信息，还可以通过直接看到的影像和听到的声音，来学习和使用对象，并可以参与或改变信息的演示。
A sound wave - as the name suggests - is a " rounded affair " . waves of air reach our ears and are processed to the brain so we perceive a tone , the sound , and hear it 大家都知道，声波是无所不在的，以连续波形释放，由我们的耳朵接收后，传到大脑，经过解读之后就成了我们所听到的声音。
From new york to cologne , tokyo to scotland , there isn t a surface that evelyn glennie cannot coax sound out of . she is a percussionist , a virtuoso and a grammy winner . yet she cannot hear 曾捧走格林美奖的顶尖儿敲击乐手伊芙莲雁妮甚至会告诉你：聋人听到的声音比正常人层次更多更丰富。
" these old ghost towns can give you a scary feeling , with the buildings falling apart and the only sound is the moaning of the wind blowing through the deserted streets . 这人说： “被遗弃的城镇真让你感到害怕。那里的房子东倒西歪，唯一能听到的声音就是在那没有人的街道上风吹的呜呜响声。 ”
These old ghost towns can give you a scary feeling , with the buildings falling apart and the only sound is the moaning of the wind blowing through the deserted streets 这个人说： “被遗弃的城镇真让你感到害怕。那里的房子东倒西歪，唯一能听到的声音，就是在那些没有人的街道上风吹的呜呜响声。 ”
Suffice to ask have we shortchanged ourselves are we hearing only the voices of those of us who ' re simply intense as opposed to truly creative , who ' re still sorting out our inner demons 我们只需要问：我们是否被蒙骗了？我们听到的声音,是否只是来自那些具有强烈感觉却没有真正的创意,还在处理他们内心挣扎的人？
For example , listeners are presented with tones that alternate in loudness ( . . . loud - soft - loud - soft . . . ) or duration ( . . . long - short - long - short . . . ) and are asked to indicate their perceied grouping 例如将不同音阶和长度不同的音乐放给测试者听，如高音-中音-高音-中音或者长音-短音-长音-短音，要求他们指出所听到的声音类型。
The sea - cook instantly removed his pipe . now , look you here , jim hawkins , he said , in a steady whisper , that was no more than audible , you re within half a plank of death , and , what s a long sight worse , of torture “现在你看，吉姆霍金斯， ”他用勉强可以听到的声音在我耳边低语道， “你的生命正处在紧要关头，更可怕的是可能要受刑，不能让你痛快地死。
For example , from the book of revelation 14 : 2 : " and i heard a voice from heaven like the sound of many waters and like the sound of loud thunder ; the voice i heard was like the sound of harpers playing on their harps . 例如，启示录十四二中提到：我听到来自天堂的声音，像是很多水的声音，也像是巨雷的声音我听到的声音好像是竖琴师弹奏竖琴的声音。
And then she heard from within the man , the beat of his heart . the heart where the music and the words had always lived . the heart beat on , steadily unconcerned about the damage to the rest of the body . and while she rested there , the magic happened . she heard what she needed to hear 然而,她却听到了他心跳的声音.那颗经常充满了音乐和爱的语言的心跳动的声音.那颗心有节奏的跳动着,好象身体其它部分所承受的痛苦已不复存在.当她静静地聆听的时候,奇迹出现了.她听到了她想听到的声音
