美语听力练习素材:奥巴马历史性的访问古巴

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例句：We finally arrived in Rome.
我们终于到达罗马。

2.be due to 预定到达的

例句：The first price increases are due to come into force in July.
第一批提价预计将在7月开始执行。

3.be scheduled to 计划

例句：The space shuttle had been scheduled to blast off at 04:38.
航天飞机已经预定于凌晨4点38分发射升空。

4.Palm Sunday 棕树节

例句：That's why it's called Palm Sunday.
这就是为什么这天被称为棕树节。