除了回声，echo的其他意思你知道吗？

This brings me to the one note of disappointment I must echo from our Benefactors. Obviously I am not on the ground to closely command or second-guess the dedicated forces of the Overwatch, but this does not mean I can shirk responsibility for recent lapses and even outright failures on their part.

——Half-Life 2

这让我想起保护者要我传达的事情，这令人非常失望。当然我并没有立场直接指挥，或者介入监管队的微妙组织。但这并不代表我能推卸所有的责任，无论是监管队近来的疏失……甚至是失败。

——《半条命2》

一、下面我们来看看echo有几种含义 

n.

1.回响，回声，回音 [U,C] the reflecting of sound off a wall or inside a confined space so that a noise appears to be repeated; a sound that is reflected back in this way

This cave has a good echo.

这个洞的回声很大。

2.共鸣；附和 [U,C] an opinion or attitude that agrees with or repeats six already expressed or thought

His words aroused no echo in their hearts.

他的话未能在他们心中引起共鸣。

3.重复；仿效 [U,C] a repetition or imitation of another

There are many echoes of Shakespeare in his work.

他的作品中有很多处模仿莎士比亚。

4.附和者；应声虫 [C] one who closely imitates or repeats another's words

"He was a good guy," agreed Adcock, who in public was usually an echo of his superior.

阿德·科克立即附和着说：“他是个好人。”在公开场合，阿德科克总是他这位上司的应声虫。

v.

1.回响，回荡 [I,T] to resound with echoes

His resounding voice continued to echo in my ears long after he was out of sight.

他人走远了，但他响亮的声音仍在我耳边回荡。

2.重复，附和（想法或看法） [I,T] to restate in support or agreement

What he said is ridiculous, but many people echoed his words.

他的讲话真荒唐，但竟然有很多人随声附和。

二、你知道echo和哪些词更搭吗？

echo sounder

回声测深器，回声测深仪，回声探测器，回音测深仪

echo sounding

回声探测

radar echo

雷达回波

三、最后，做个填词游戏吧

She shouted on the mountaintop and listened for the ____.

她在山顶上大声喊着，然后聆听着回声。