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BBC在线收听下载:美国总统特朗普开始其任期

2017-01-23来源:BBC

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词汇讲解：

1. pledge n.保证，誓言
例句：He would keep his pledge to the utmost of his power.
他将极力信守他的誓言。

2. promise vt. 允诺，许诺
例句：The post office has promised to resume first class mail delivery to the area on Friday
邮局承诺于星期五恢复对这个地区第一类邮件的递送。

3. require vt. 需要; 要求; 想要
例句：If you require further information, you should consult the registrar
如果需要进一步了解信息，请咨询教务主任。

4. negotiate vi.谈判，协商，交涉
例句：It is not clear whether the president is willing to negotiate with the democrats
还不清楚总统是否愿意和民主人士洽谈。

5. extract vt.提取; （费力地）拔出
例句：Citric acid can be extracted from the juice of oranges, lemons, limes or grapefruit.
柠檬酸可以从橙汁、柠檬汁、酸橙汁或者柚子汁中提取。