We could describe such people as changeable, uncertain or -- here's a good word -- fickle.

我们可以形容些人易变（changeable）、多变（uncertain），里有一个很适词，反复无常（fickle）。

Frequent breakups and makeups, high highs and low lows: as tension rises, so does volatility.

经常性分分，情感大起大落：随着紧张程度上升，易变性也增加。

Helen! She's more unpredictable and volatile than D.J.

海伦！她比D.J.更难以预料，更易变。

Remember, these numbers are volatile and can sometimes change by the second.

请记住，些数字是易变， 有时会以秒为单位发生变化。

But we also know that a sand dune is a very fluid thing.

但我们也知道，沙丘是一个非常易变事物。

But beneath it lies something more contemporary and more volatile.

然而，在之下隐藏着更为现代且易变事物。

Our chimp system is highly strong and it's quite reactive and impulsive.

我们“黑猩猩系统”极为强大，且反应迅速、冲动易变。

A plant that one eats. vegetable. Likely to change. changeable.

• 一种可以食用植物。蔬菜。可能发生变化。易变。

Sexuality isn't fixed, as it is fluid.

性向并非固定 而是流动易变。

Their shares are more liquid than those of many smaller companies.

【liquid】他们股票比许多较小型公司股票更易变。

They delude us more than they teach us, and bring us but uncertain and fugitive images.

他们欺骗我们多于他们教导我们， 给我们带来只是不确定和易变形象。

Today, guys, we have some amazing vocabulary for you that you can use on IELTS to describe people's personalities, emotions, moods.

今天，我们为大家准备了一些精彩词，些词不仅可以在雅思考试中用来描述人性格、情感和心情，还非常适用来形容那些善变、易变事物。

In a moment, what's it like to be in a custody battle with the richest, smartest, most volatile men in the world?

片刻之后，与全球最富有、最聪明但也最易变男人进行监护权争夺战是何种体验？

THOSE unconvinced-and those seeking to unconvince others-of the reality of man-made global warming often point to the changeable behaviour of the sun as an alternative hypothesis.

不相信全球变暖是人为因素造成和那些企图让别人不相信人常常会将太阳易变表现作为假设进行选择。

Of course, many people had dreams which were of no consequence, and these could usually be traced to gluttony or a flighty, inconstant imagination.

当然，许多人怀有梦想并无实际意义，些梦通常源于贪食或轻浮、易变想象。

It could be because of greater natural variability in the climate, because clouds dampen warming or because of some other little-understood mechanism in the almost infinitely complex climate system.

可能是因为自然气候有很大易变性，因为云能减弱温升，或因为在无限复杂气候系统中有一些不为人知调节机制。

You might make the same decision, even though it's out of character with how you were before, that the self is that fluid, essentially, is what he was saying.

你可能会做出同样决定， 即使与你以前性格不符，也就是说， 自我是如此易变，基本上就是他意思。

For these reasons perfect stability of prices is impossible in an economy subject to change-unless, indeed, there is some peculiar mechanism which ensures temporary fluctuations of just the right degree in the propensity to consume.

由于些原因，在一个易变经济体中，价格完美稳定是不可能——事实上，除非有某种特殊机制来确保消费倾向暂时波动恰到好处。