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1·Charles and I were closeted in his study for the briefing session.

查尔斯和我在他的书房里私下开简报会。《柯林斯英汉双解大词典》

2·It's a fair question, and there's a lot more to the answer than I can usually provide in a short briefing session.

这是一个好问题，会有比我通常提供的简要会话更多的答案。

3·Each briefing session is divided into two parts, the first part will be a general introduction to the online material and the second part will be a sharing workshop amongst the participants.

每场讲座包括两个部分，第一部分为网上平台资源的介绍，第二部分为经验分享工作坊。