Basically, the phenomenon of Standing Waves occurs when sound waves of the same frequency reflect off the walls and meet from opposite directions.

基本上，当相同频率的声波从墙壁上反射并从相反方向相遇，就会出现驻波现象。

youdao

I would like to find the parents who could shelter girls from the opposite sex if they live in Oxford.

我想找一些父母，如果他们住在牛津，他们可以为女孩提供庇护，使她们免受异性的伤害。

youdao

Are teenagers in particular, do you think, sheltered too much from contact with the opposite sex?

你是否认为，青少年尤其受到了过多的保护以避免与异性接触？

youdao

They did not yet understand that they were seeing the problem from the opposite direction.

VOA: special.2009.04.21

So we know that in each case the heat is going to be the opposite of the work, but the work isn't the same in these two different ways of getting from here to here, right. So let's just see it explicitly. Here's our qA.

所以我们知道在每种情形下功,与热量相差一个负号,但从这里到这里，在这两条路径,中的功是不同的，对吧？,那么让我们明确地看一下。

麻省理工公开课 - 热力学与动力学课程节选

They face in the opposite direction and you could predict the properties of one from base pairing rules of the other but they're not the same.

它们是反向的,尽管你能够通过一条链上的碱基序列,预测另一条链的序列,但这两条链是不同的

耶鲁公开课 - 生物医学工程探索课程节选

In these respects Mowbray is perhaps a polar opposite from his predecessor.

BBC: Mowbray the natural leader

Mainframes are about as opposite from cute as you can get.

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Expect exactly the opposite from WUWT-TV.

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