The durability of the ipef is also in doubt.

ipef的持久性也存在疑问。

And finally, durability pretty hard to assess.

最后，性很难评估。

Not because it is very cheap, the durability is less.

不是因为它很便宜，而是性较差。

So durability, let's call it a five out of five.

所以性，我们给它打五星吧。

And finally, in terms of durability, this stuff's not particular durable.

最后，就性而言，这东西并不特别。

Countless books and essays assessed the American century, its impact and its durability.

人们争先恐后著书立说，评论美国世纪及其影响和持续性。

But as the demand for jeans has gone up, their durability has gone down.

但牛仔裤需求上升的同，下降了。

Once carefully rinsed and washed, it became a material of extraordinary malleability and durability.

经反复淘洗，它就会成为一种具有非凡延展性和久性的材料。

That one can fly y'all and it sets a new bar for smartphone durability.

这是一部会飞的手机，而且使智能手机的性上了一个新台阶。

A message Daalder says needs reinforcement as the durability of the NATO alliancetoday is tested.

达尔德说，北约联盟的持久性需要加强。

Their durability reflects their powerful corporate cultures. But the country still does creative destruction, too.

他们历久弥新，反映了他们强有的企业文化。但是国家也仍会破坏创新。

And finally, when it comes to durability, not particularly durable.

最后，说到性，不是特别。

But the same durability that makes plastic so useful also makes it a danger to our marine environment.

虽然性使塑料如此有，但也使它对我们的海洋环境构成危险。

You cannot have the same type of strength levels, you cannot have the same type of durability.

你不能同具有相同类型的强和相同类型的久性。

More than two years later, we're still struggling to gauge the strength and durability of the recovery.

两年多过去了，我们仍在努衡量经济复苏的强和持久性。

So durability gets a three out of five.

所以性只有三星。

Due to their height and durability, overhead lines have become a popular site for birds to make a home.

高铁接触网的高和坚固，已经让它成为了鸟类安家的热门场所。

The durability of his regime is one reason why some Western governments are softening their rhetoric about president Assad.

许多西方政府正在不断减弱对阿萨德的美化，而阿萨德政权的坚不可摧也是促使西方进行行动的原因之一。

Some improve its durability and feel.

有些提高了它的性和手感。

Some improve its durability and feel; others give jeans their blue color.

有些提高了其性和手感；其他人则将牛仔裤定为蓝色。