Mobile agent system is a new paradigm of distributed computing, with some prominent advantages, but agent-based applications is impeded by the question of security.

移动代理系统是一种新的分布式计算形式，具有显著的优点，但其应用面临安全问题。

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"I'm sorry," he told the real estate agent, "but we really must go now."

“对不起，”他告诉房地产经纪人，“但我们的确要走了。”

《柯林斯英汉双解大词典》

But the most cutting-edge tool under development is the "teachable agent"— a computerized character who learns, tries, makes mistakes and asks questions just like a real-world pupil.

但最先进的开发工具是“可教的代理”——一个计算机化的会学习、尝试、犯错和提问的角色，就像一个真实世界的学生。

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"But you stupid idiot!" shouted Mister Morehouse, madly shaking a thin book beneath the agent's nose.

VOA: special.2010.09.18

But unlike the Cowpox virus, vaccinea, that we talked about before, this is the real disease causing agent.

但是同我们之前曾讨论过的,牛痘病毒疫苗的不同之处在于,这是可以直接致病的病毒

耶鲁公开课 - 生物医学工程探索课程节选

Intelligence officials say Balawi was a double agent, posing as a Jordanian informant but working for the al-Qaida terror network.

VOA: standard.2010.01.09

Croatia coach Bilic is still under contract but agent Rudi Vata told BBC Scotland earlier this week that the former Everton and West Ham defender was keen for a new challenge.

BBC: Reid dampens Celtic speculation

But his agent Wayne Beavis said the former Australia Test star planned to meet Warriors chairman Ian Lenagan to discuss his future.

BBC: Barrett denies plan to quit Wigan

Second, until its privatisation between 1994 and 1996, Elf (which was taken over by Total Fina last September) was not just a company but an agent of the state.

ECONOMIST: France��s secret loves