When the user clicks the button the first time during a session, a page is populated from the first document in the current database and sent to the browser.

在会话期间当用户首次单击按钮时，将从当前数据库中的第一个文档开始填充页面，并将页面发送到浏览器。

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During a session, the people you're instructing are involved in a variety of new exercises, activities, simulations, and procedures.

在课程中，你指导的学员会经历一系列的新练习，活动，模拟和程序。

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during the speech to a rare joint session of Congress.

VOA: special.2009.09.12

During a recent session with reporters, Mr.Obama said he will be candid with the Saudi monarch.

VOA: standard.2009.06.02

The president appealed to lawmakers from both parties to work together on health care during his recent address to a joint session of Congress.

VOA: standard.2009.09.28

"We lost Andy to an injury he sustained during a session on Tuesday, " said Wales forwards coach Robin McBryde.

BBC: Wales suffer Andy Powell injury blow

Schmidt made the statement during a session with reporters at the Mobile World Congress, taking place in Barcelona.

FORBES: Google's Schmidt: Don't Let the United Nations Rule the Internet

The first time the Conservative party leader, William Hague, heard about the plot was when Tony Blair announced it during a session of prime minister's questions.

BBC: Democracy Live site links