听力文本

According to CNN, Joseph Yun, the former State Department Special Representative for North Korea, confirmed on Monday
据CNN报道，前美国国务院朝鲜问题特别代表约瑟夫·云周一证实，
that he signed an agreement to pay North Korea $2 million for the release of American student Otto Warmbier in 2017.
2017年，他签署了一项向朝鲜支付200万美元的协议，以使美国学生奥托·瓦姆比尔获释n66y);^&FF。

Yun said that he did so with the approval of then-Secretary of State Rex Tillerson
他表示，这个做法得到了时任国务卿雷克斯·蒂勒森的批准，
and that it was his understanding President Donald Trump had also signed off on the decision.
据他所知，唐纳德·特朗普总统也签署了这一决定E&SnLo*bYa0;vkS。
However, the Trump administration has said no money has been paid for release of Warmbier.
但是，特朗普政权表示，美方没有为瓦姆比尔获释支付任何赎金#R#~RhG6qN2fwi-8~Y=。

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词汇解析

1、sign off签署
Before each build, team member from cross function department should sign off in readiness sheet to confirm status of each function.
在每次生产前，项目成员应当在准备就绪表上签名确认各职能部门准备的状态g!S.0Eq@Ad%pFux6iv。

2、sign an agreement签署协议
Now, we have seen this administration sign an agreement with the Iraqi government, creating a timeframe for removing U.S. troops.
现在，我们看到现任政府和伊拉克政府签署了一项协议，从而为撤军制定出一个时间表dSzH=gNn3KE2s(。