英音听力讲解:欧洲航天局“菲莱”探测器首次登陆彗星

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1.Soldiers were soon at the scene and sealed off the area.

seal off 封闭；把…封锁起来

Windows are usually sealed off.
窗户通常是封闭的。

The areas are sealed off and ringed by troops.
这些地区被军队封锁包围了。

2.The Sinn Fein president Gerry Adams has been accused of covering up an investigation in Northern Ireland,

cover up 掩盖，盖住

He tried to cover up his mistakes but in vain.
他试图掩饰他的错误，但办不到。

He had been punished for covering up for a friend.
他因包庇友人曾受到处分。