美语听力练习素材:奥巴马宣布解除对越武器禁运

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例句：The United Nations imposed an arms embargo against the country.
联合国对那个国家实施了武器禁运。

2.police officer 警员

例句：Mr Calder tried to leave the shop but the police officer blocked his path.
考尔德先生想离开商店，但是那位警员拦住了他。

3.identify as 认为

例句：I identify as black, she said with a smile.
我觉得自己是黑人，她微笑着说。

4.Mediterranean sea 地中海

例句：The Nile flows from Lake Victoria in East Africa north to the Mediterranean Sea.
尼罗河由东非的维多利亚湖向北流至地中海。