Secretary GeneralThe head leader and spokesperson for ASEAN.

秘书长东南亚国家联盟的首要领导和发言人。

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A leader is the head of a school, or enterprise.

领导是一个学校或企业的头头。

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Agent Chet Blackburn, the assault team leader, stuck his helmeted head into the cab. "Maybe we should have used an assault chopper."

突击队队长切特·布莱克本特工戴着防弹盔的脑袋挤进了驾驶室：“也许我们应该用突击直升机。”

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A big wheel may be the head of a company, a political leader, a famous movie star.

VOA: special.2009.11.29

Of the few who have been identified, one is an active duty army general accused of being head of the military wing of the conspiracy, and another is an opposition political figure said to be leader of the civilian wing.

VOA: standard.2009.05.25

Head teachers' leader Brian Lightman said that so far there had been a "completely inadequate response".

BBC: Head teachers take GCSE battle to court

Meanwhile a head teachers' leader is saying a lack of funds could jeopardise government plans for extended schools.

BBC: NEWS | UK | Education | 'Tighter' education funding flow

Head teachers' leader Russell Hobby described the changes as "limited" and said he did not think heads would be looking to employ unqualified staff.

BBC: Warning of rise of 'unqualified teachers' in classrooms