chief delegate首席代表
6.More than 800 delegates are expected to attend the three-day Fortune Global Forum, which opens on Monday.
预计将有800多名代表参加为期三天的全球财富论坛,该论坛于周一开幕。
7.One had to listen hard to catch the words of the president's speech as the delegates booed and hissed.
由于代表们发嘘声、喝倒彩,得费劲儿地听才能听清总统的演讲。