慢速英语:Music Service Spotify Recruits Barack Obama

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1. observer n.观察员; 遵守者
例句：A casual observer would have taken them to be three men out for an evening stroll
乍一看的话，还以为他们三人是晚上出来散步的。

2. qualify vt.（使） 具有资格; 有权; 达标
例句：He may have to qualify some goals.
他有时不得不修改某些目标。

3. requirement n.要求; 必要条件; 必需品
例句：This is a basic requirement for the stable economic life of the Japanese people.
这是日本人民对稳定经济生活的基本要求。

4. mention vt. 提到，说起; 提名表扬
例句：She did not mention her mother's absence
她并没有说起她母亲不在场的事。