Each time I failed in my quit attempt, I felt guilty and weak and unsure of my ability to overcome such difficult hurdles.

在我每次试图戒烟失败后，我都感到既虚弱又无比自责，同时对自己克服这种困难的能力持怀疑态度。

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Most certificate authorities attempt to verify a person's identity to the best of their ability before issuing a digital certificate with that person's name on it.

大部分认证权威都会在发行带有个人名的数字证书之前就试图验证他的身份就是本人。

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But an attempt to endow the fembot with the ability to detect faces and make more realistic eye contact has been only half successful.

但是赋予女机器人面孔识别功能和更真实的眼神交流的尝试只成功了一半。

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South Korea,Japan, and the United States say the launch will be a provocative attempt to advance North Korea's ability to deliver warheads, via ballistic missiles.

VOA: standard.2009.04.01

(Music) Google is making changes to the way it handles news content, in an apparent attempt to appease news providers who claim the Internet search giant is undermining their ability to charge subscribers.

VOA: standard.2009.12.05

But with improved protection from equipment such as ski body armor, is there a danger of being lulled into a false sense of security and to attempt something above your ability level?

CNN: Danger on the slopes: Are winter sports safe?

Its ability to adjust the benchmark rate, in an attempt to minimize the whiplash of recession, has the unfortunate effect of helping one goal at the expense of the other.

FORBES: Magazine Article

Plaid officials have said it is about using precisely the right phrase rather than attempt to symbolise the party's ability to straddle Wales's split personality, but it is hard not to see that in it.

BBC: Troubled Plaid conference under way