Expert observers say the terms are hard to evaluate, and some think the deal will fail within a matter of weeks.

专业的观察者称，这个结果很难有好转，甚至一部分专家认为这个协定的失败只是几周内的事。

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“It’s hard to choose between these two very exciting results,” said exoplanet expert Josh Winn of MIT, who is attending the conference in France but was not involved in either new work.

外星星系专家，麻省理工的约翰·温说，“这两个发现让人兴奋，不分仲伯”。 他也参加了法国的会议，但并没有对此进行讨论。

youdao

I'm not a genetics expert, but what I find truly amazing is when it's hard to distinguish who's the daughter and who's the mother.

我不是一个基因专家但当我发现很难分清谁是女儿谁是母亲的时候还是非常诧异的。

youdao

It's hard to explain. I'm not an expert, so I just...

这很难解释。我不是一个专家，所以我只能……

英国的啤酒 - SpeakingMax英语口语达人

Songs can be played on easy, medium, hard, or expert, with some of the moves mastered in previous modes making their way up the dance chain.

FORBES: A First Look at Dance Central 3

It has become an expert at ferreting out hard-to-reach patients with obscure and potentially fatal genetic diseases--namely lysosomal storage disorders, a group of 40 genetic diseases marked by a deficient enzyme.

FORBES: Magazine Article

He said Mr Duncan Smith had spent "hard years turning himself into a leading and principled expert on welfare, its effects and shortcomings".

BBC: Welfare cuts unjust, say four churches