No matter how bound up you are, you can usually make some sort of noise, like a grunt.

无论你被捆绑到什么程度，通常你都可以发出某种声音，比如咕噜声。

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This unfortunately means that there is not much that can be done about one-off noise, like someone trying to learn to play a trumpet.

可惜，这意味着对于一次性的噪音没有什么办法，比如有人尝试学习吹小号产生的噪音。

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The peasant pinched the raven's head, so that he croaked and made a noise like krr, krr.

农夫掐了一下乌鸦的头，结果乌鸦叫了起来，发出了呱呱的声音。

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Over the years, the government has taken steps to address the problem, including regulating low-frequency noise like water pumps, and reducing maximum decibels.

BBC: Taiwan's noise pollution dilemma

Eventually, though, they're all reduced to a snoozeful thrum by a process that works like noise-canceling headphones -- every speech, stance or position has its nullifying opposite.

WSJ: Film Review

Arnheim didn't like the noise-isolating earphones he received from Etymotic Research in February, which is one reason the Silicon Valley 100 didn't help sell a lot of the product.

FORBES: Geek Chic