本期内容：

Iran’s civil-aviation authorities said they had agreed to buy 100 planes from Boeing, pending final permission from the American Treasury Department. The deal could be worth $17 billion. Pro-Israel lawmakers in Washington complained. As sanctions ease, the American aircraft-manufacturer is trying to catch up its European rival Airbus, which has provisionally sold Iran 118 jets for $27 billion.

词汇讲解：
Aviation: 航空
Pending：等待
Treasury Department：财政部
Pro-：支持……
Lawmaker：立法者
Sanction：制裁
Manufacturer：制造商
Catch up with: 追赶

Provisional：按计划的

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