The group of scientists said that plants are not as quiet as we had always thought, but in fact their voices are so high-pitched that we just can't hear them.
这群科学家称，植物并不像我们一直以为的那般安静，事实上，它们的声音频率极高，高到我们根本听不到。
In this study, the researchers looked at the high-pitched barks a prairie dog makes when it spots predator.
在这项研究中，研究人员观察了土拨鼠发现捕食者时发出的高音吠叫声。
It began with a study one of them did on a dolphin, who had been trained to recognize a particular high-pitched tone.
首先，他们中的一个人对海豚做了一项研究，训练它识别一种特殊的高音。
He called his dog with a high-pitched whistle.
他用尖利的口哨声呼唤他的狗。
Nearby, women responded with high-pitched trills.
在附近,女人则用尖锐的花舌颤音作为回应。
Some animals' voices are high-pitched, others are low.
一些动物的叫声很尖锐，别的很低沉。
When she spoke, her voice had a high-pitched, nasal twang.
当她开始说话后，她的声音中带着尖尖的鼻音。
This meow is actually a purr mixed with a high-pitched cry.
这种喵呜实际上是猫儿得意时的叫声，但是混合了高频率的哭泣声。
Many murine squeakings are too high-pitched to be perceptible.
许多小鼠的尖叫声非常高亢，难以感觉它是否口吃。
This is the high-pitched, ear-shattering sound of a 13-year-old girl.
那不是孩子之间的争吵声或者家长的责骂声，而是出自一个13岁女孩之口的极高频率的震耳欲聋的尖叫。
Even women's voices change, becoming more high-pitched when they are fertile.
她们的声音在排卵期也有变化，变得更尖利刺耳。
I was startled so bad that I jumped, yelped, and a high-pitched fart snuck out.
我吓得跳了起来，大叫了一声，并放了一个很响的屁。
The giggle is a loud, high-pitched rapid series of staccato“hee-hee-hee” sounds.
这种傻笑般的叫声是一连串断断续续响亮且尖锐的“呵呵呵”声。
There's the low growl, the more intense medium growl, and the high-pitched screech.
这些人声包括低吼，更有力的中音咆哮，还有尖利的高音。
If you buy a bat detector you can pick up their high-pitched echo-location calls as well.
如果你购置了一个蝙蝠探测器，你还可以探测蝙蝠高音的回声，便知它们的位置。
And men feel that if a woman has a high-pitched voice, she is more likely to be unfaithful.
而男人们则认为音调高的女性更有可能出轨。
Her speeches were punctuated by her son's high-pitched crying as the publicist tried to calm him.
她的演讲不时被儿子的高声哭闹打断，而那个推广人员则要拼命安抚他。
Now, this is high-pitched hearing loss, so a person can still hear sounds and understand most speech.
这是一种对高声调的声音听力丧失，所以她/他仍可以听清楚并且明白大多数的日常对话。
Similarities: high-pitched voice, repetitive use of grammatically acceptable words, present-tense verbs.
相同点：很高的声调，重复使用简单的句式。
A high-pitched whirring sound begins, and a mechanized double-pronged probe pushes itself into his nose.
一阵高频的呼呼声开始响起，一个机械的双分叉头的探针被推进了他的鼻子。
Because researchers in London have developed technology to cancel out the drill's unpleasant high-pitched whine.
因为伦敦的研究人员已经开发出能够消除这种令人不愉快的嘎嘎高音的技术。
It was already late in the afternoon, but the small fenced-in area was full of the children's high-pitched activity.
下午很晚了，但栅栏里面的小小区域里孩子们玩得热火朝天。
Household cats exercise this control with a certain type of urgent-sounding, high-pitched meow, according to the findings.
研究结果称，家养猫儿们通过一种特定的叫声- - -急迫、高频率的喵呜声来练习它们的这种控制力。
"You are a mallow monster - yes," said Sarah in a high-pitched baby voice as she hands a marshmallow through the bars of the cage.
“大号的锦葵！”莎拉说着将它递入笼中，随即传来婴儿般的尖音。
These incredibly high-pitched and fast-paced calls enable the bats to track bugs and other prey in the dense rainforest understory.
这些难以置信的高速和快节奏的声波能够使它在茂密的热带雨林下追踪昆虫和其他猎物。
The agent in this case can play a low sound while voltage is within correct parameters and a high-pitched sound when a problem occurs.
在这种情况下，代理可以在电压正常时发出低沉的声音，而在出现问题是发出高亢的声音。
A high-pitched whine, then a thump, signaled the deployment of the landing gear. The flaps dropped and the aircraft slowed drastically.
一个尖锐的声音伴随着沉闷的砰砰声，这是驾驶员在放下起落架，襟翼放下之后，飞机的速度慢了许多。
Short shrieks, high-pitched yelps and drawn-out wails rang out in Thailand at an international competition to find the world's loudest scream (see photo).
1日，泰国举行了一场尖叫大赛，进入决赛的选手或短声尖叫，或高音尖叫，或持续哀号，想要打破尖叫最大声的世界纪录(见图)。
The drone of insects is interrupted by a high-pitched drill and the clang of hammers as workers put the finishing touches to the perfectly aligned steel tracks.
当工人们对排放整齐的铁轨进行最后的修整时，刺耳的钻动声和锤子的当啷生淹没了虫子的鸣叫。
The drone of insects is interrupted by a high-pitched drill and the clang of hammers as workers put the finishing touches to the perfectly aligned steel tracks.
当工人们对排放整齐的铁轨进行最后的修整时，刺耳的钻动声和锤子的当啷生淹没了虫子的鸣叫。
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