The amplitude defines how loud the sound is and is usually measured in decibels ( dB ).

Watch the monitor and tell me if the level goes above forty decibels.

看着监测器,如果超过40分贝就告诉我.

A hippopotamus'scream has been recorded at 115 decibels-louder than a jet airliner at takeoff.

河马发出的声音可以达到115分贝——比一架喷气式客机起飞时的声音还要大.

If you decide not to buy, the money you have spent on the survey is not recoverable.

如果你决定不买，你在调查上花的钱是收不回来的。

They're keenly aware that whatever they decide will set a precedent.

他们深知无论他们的决定是什么，都将开创先例。

She's not in position to decide.

她作不了主.

It's up to you to decide whether you go or not.

去还是不去,任你决定.

He was trying to decide whether the question was some sort of a trap.

他试图判断那个问题是不是个套。

We will be having a meeting to decide what to do.

我们准备开个会来决定怎么办。

It rests with you to decide whether to go or not.

去不去,在于你.

The present leaders have to decide whether to stand down and hand over to a younger generation.

现任领导层必须决定是否应退居二线，把重任移交给更为年轻的一代。

The results will decide if he will win a place at a good university.

这些成绩将决定他能否上一所好大学。

I can't decide what to do. I'll sleep on it and let you know tomorrow.

我不能决定该怎么做. 我考虑一下,明天告诉你.

Let's put our heads together and decide how the problem is to be tackled.

大家合计合计这个问题该怎么处理.

They may well decide that their interests would be best served by joining in.

他们很有可能认定参与其中才会令其利益最大化。

Students may decide to seek tutorial guidance.

学生可以决定寻求导师指导。

You are the one to decide.

该由你来决定.

The public must decide.

必须由公众来决定.

Once the Americans decide to do a thing, they do it well, and hang the cost.

一旦美国人决定要做一件事，他们就会把它做好，且丝毫不计代价。

Judges don't have to shoot from the hip. They have the leisure to think, to decide.

法官们不必贸然行事。他们可以不慌不忙地去思考，去决定。

They would log into their account and take a look at prices and decide what they'd like to do.

他们会登入自己的账户，查看价格后再决定怎么做。