Mary is very adept at playing pianos.

玛丽非常擅长弹钢琴。

Even the bourgeois world of Paris at play had its shadowy side.

即便是热衷娱乐的巴黎中产阶级世界 也有它阴暗的一面。

However, there are many different phenomena at play.

然而却有着许多截然不同的现象。

Here, a pack of rogue younglings at play.

这里有一群冒失的年轻族群。

There are other factors at play, too.

还有其他因素在起作用。

There are also Iranian politics at play.

当然伊朗政治也在发挥作用。

There are certain forces at play here.

还有其他势力参与其中。

Geopolitics are at play in our first story.

我们的第一个故事是正在发生的地缘政治事件。

All three are at play in an igloo.

冰屋里面，热量传递的这三种方式都实现了。

Now he is at play with his hoop.

他现在正玩着滚环。

There are always Forces at play with you.

你总是和其他势力搅和在一起。

The android is adroit at playing the guitar.

机器人 (android) 很擅长 (adroit) 弹吉他。

He is good at playing the guitar with only one string.

他擅长弹奏单弦吉他。

Basic economics are at play, scarcity drives up prices.

这就是简单的经济学原理，物以稀为贵。

I've said, are you good at playing sports?

我说，你擅长运动吗？

Luz is a very skilled at playing the piano.

卢兹弹钢琴弹得很熟练。

But it can come into play at any time.

但在任何时候，它都会发挥作用。

And she is really good at playing first base.

而且她是一垒高手。

There are other major factors at play here.

另外还有一些关键因素。

The Royal Opera House is the Establishment at play.

皇家歌剧院就是权势阶层的消遣。