VOA慢速英语:Improve Your Pronunciation by Training Your Ears

短语讲解：

1.You may be surprised to know that a number of teachers do not know how to effectively teach this skill.

a number of 一些; 许多的
例句：A number of local personalities were present at the meeting.
一些当地名人出席了会议。

2.Listening to songs, says Stout, can help speed up your progress.

speed up （使） 加速; 开快车; 加紧; 增速
例句：We must supervise and speed up the fulfilment of assigned tasks.
我们已经布置了的工作, 应当认真督促检查。

3.I think that's an important aspect is being willing to take chances and sound different to yourself.

be willing to 乐于; 肯; 甘于
例句：You must be willing to reskill.
你必须乐于学习新技术。