The hills sent back a faint echo.

座座山丘传来微弱的回声。

There was an echo on the line and I couldn't hear clearly.

电话里有回音，我听不清楚。

His words were an echo of what she had heard many times before.

他的话是她多次听到过的话的重复。

In our case, we have found the true acoustic echo beacon.

在我们的例子中，我们找到了真正的声学回声信标。

The girl let out a giggle that seemed to echo, and she ran away.

那女孩发出一声似乎是回声的咯咯笑声，然后跑开了。

The father explains, "People call this ECHO, but really this is life."

父亲解释说：“人们称这为‘回音'，但实际上这就是人生。”

Those produce a large number of faint reflections in what's called as: a smooth of echo.

这些（松针并不茂密的松树）能产生大量微弱的反射，我们称之为“平滑回声”。

I read that concert halls designed for symphony orchestras have too much echo for jazz music.

我听说，为交响乐团设计的音乐厅里有太多爵士乐的回音。

You are on the right track—it is actually the echo of all the leaves as a whole that matters.

你找对思路了——真正重要的是所有树叶整体的回声。

We shouted in the valley, and in an instant the echo came from the hillside with great distinctness.

我们在山谷中高呼，回声霎时间就从山腰上清晰地返回。

We shouted in the valley, and in an instant, the echo came from the hillside with great distinctness.

我们在山谷里大喊，不一会儿，回声就清晰地从山坡上传来。

These just fade out on shallow beaches, so the whale doesn't hear an echo and it crashes onto the shore.

这些声音在浅滩上逐渐消失，所以鲸鱼没有听到回声，就撞到了岸边。

So, the echoes from a tree are going to a mass of chaotic acoustic reflections, not like the echo from a moth.

所以，树的回声会是一团混乱的声波反射，而不像飞蛾的回声那样。

By hanging panels of sound absorbing felt on the walls, Sabine reduced the echo enough to make the hall usable.

通过在墙上悬挂吸音板，Sabine 减少了足够的回声，使大厅可用。

These bats can distinguish between the two, and not just with trees, but with any echo that comes in a smooth or rough shape.

这些蝙蝠能够区分这两种声音，不仅仅是通过树木的回声，而是通过任何平滑或粗糙的回声。

Usually, as they swim, they make clicking noises, and the resulting sound waves are reflected in an echo and travel back to them.

通常，当它们游泳时，会发出咔嚓的声音，所产生的声波会在回声中被反射回到它们身边。

These findings echo earlier research that suggests our perception of food can sometimes trick our body's response to the food itself.

这些发现与早期的研究相呼应，即我们对食物的感知有时会欺骗我们的身体对食物本身的反应。

These structures had been detected years earlier by echo-sounding instruments, but they had never been penetrated in the course of drilling.

这些结构在早些年曾被回声探测器探测到，但是它们从未被钻探过。

I think your husband should legalize immigration. Please put a statue of me in Echo Park. Thank you. No, really. I want a tuxedo on the statue.

我认为你的丈夫应该使移民合法化。请在回声公园给我立个雕像。谢谢。不，说真的。我希望雕像是穿一身礼服的。

For example, one echo they quickly identify is the one they associate with a moth, which is common prey for a bat, particularly a moth beating its wings.

例如，他们很快就能识别出与飞蛾有关的回声，飞蛾是蝙蝠的常见猎物，尤其是扑打翅膀的飞蛾。

He found that the length of time it takes a sound's echo to decay is determined by the absorption of the sound's original energy by surrounding material.

他发现，声音回声衰减的时间长短取决于周围物质对声音原始能量的吸收。

The data he compiled yielded a mathematical formula for the relationship between a room's echo duration, its quantity and quality of sound-absorbing materials, and its spatial volume.

他收集的数据得出了一个关于房间回声持续时间、吸音材料的数量和质量以及空间体积之间关系的数学公式。

Their views often echo each other.

他们的见解常常彼此附和。

The old fable continues to echo down the centuries.

这一古老的寓言流传了数个世纪。

Pinks and beiges were chosen to echo the colours of the ceiling.

粉色和米色被选来反映天花板的那些颜色。

The Virgilian echo gives this passage in Milton an unmistakable pathos and an undeniable beauty.

这个维吉尔式的共鸣使弥尔顿的这一段，有了一种一目了然的悲怆和不可否认的绝美。

Echo is always complaining about her job as a cashier, but frankly it's something to have a job in these difficult days.

厄科总是在抱怨她当出纳员的工作，但坦白地说，在这样困难的日子里有份工作就很不错了。

Samson begins to echo Milton from the invocation that we've been looking at, the invocation to Book Three of Paradise Lost.

从我们一直看的祈祷，从《失乐园》第三卷中的祈求，参孙开始附和弥尔顿。

But an oak which has fewer but bigger leaves with stronger reflections, produces a jagged wave form, or what we called a rough echo.

但是，橡树的叶子少而又大，反射力较强，会产生参差不齐的声波，或所谓的“粗糙回声”。

He is an echo of his master.

他是主人的应声虫。