慢速英语:Harmonica Playing Good for Body and Soul

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1.improve vt.提高（土地、地产）的价值; 利用（机会）; 改善，改良
例句：Both the texture and condition of your hair should improve
你头发的发质与健康状况都应改善。

2.supervise vt.监督; 管理; 指导
例句：University teachers have refused to supervise students 'examinations
大学教师拒绝监考。

3.involve vt.包含; 使参与，牵涉; 围绕
例句：Running a kitchen involves a great deal of discipline and speed
料理好厨房需要把一切都安排得规规矩矩，且要讲求速度。

4.prevent vt.预防; 阻止
例句：These methods prevent pregnancy
这些方法能防止怀孕。

5.manage vt.经营; 使用; 完成（困难的事）
例句：How did you manage to get their consent?
你怎么得到他们的同意的?

6.convince vt.使相信，说服，使承认
例句：How did you manage to get their consent?
你怎么得到他们的同意的?