Teaching history is important because students should be able to understand the background to current issues in the news.

教授历史很重要，因为学生应该能够理解新闻中当前问题的背景。

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"Although I have a medical background, I feel the news that's delivered to women is quite brutal," she says.

她说，“虽然我有医学背景，我认为传递给妇女的信息相对当残忍。”

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Mr Jobs gave a demonstration of the multi-tasking feature showed the online radio station Pandora running in the background playing music while a user could either read news online or deal with email.

乔布斯展示了多任务功能，用户一边在线收听潘多拉电台的音乐，一边在网上看新闻或者处理电子邮件。

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In terms of the nature thing, this basically means that the phone comes loaded with some splashy water graphics and sound effects as well as plenty of seasonal wallpapers (including some new smart wallpapers like a background news feed).

ENGADGET: Samsung Galaxy S III preview: hands-on with the next Android superphone (video)

The bad political news is taking place against a background of generally good economic news.

ECONOMIST: Peru's reshuffled government: Playing for time | The

But the company has just released the background method for its news feed update.

FORBES: On News Feed, Facebook Shows Off A Bit of Petticoat