They're elusive, very difficult to catch up with.

“它们非常神秘，很难捉到。”

But major progress on the Israeli-Palestinian conflict proved much more elusive.

但在巴以冲突上取得重大进展的难度要大得多。

Success always seems as inevitable in retrospect as it is elusive when sought.

人们回想过去的时候，总觉得成功本来是十拿九稳的，而在追求成功时，它却虚无缥缈。

That is, they're being created by the elusive WIMPs.

也就是说，它们是由神秘的大质量弱相互作用粒子产生的。

Hence the plaintiffs' search for less elusive accomplices.

因此原告开始寻找神出鬼没的同谋者。

Pigeon cartel is one of the most elusive of criminal gangs.

鸽子黑帮是这些犯罪团伙里最难捉的一群。

But a storybook ending for drive-ins might prove elusive.

然而，故事书似的结局对汽车影院而言或许有些遥不可及。

There is an elusive quality to them.

它们有一个难以捉摸的特点。

Perhaps even more elusive than you, Harold.

也许比你还神出鬼没 哈罗德。

And, for the last 800 years, elusive.

而且失踪了八百年。