介绍:
雅思口语7分词汇评分标准当中，要求同学们能用一些不常见单词和习语。所以如果你的口语目标分数是7，那在平常的学习过程当中，可以根据雅思口语的话题，适当的去积累一些习语（有目的性的积累和准备）。今天跟大家分享一道关于sleep的问题及答案，顺便学习一些相关词汇和习语。
How many hours do you sleep everyday ?
I usually have 8 hours of sleep because study has shown that most adults need 7 to 9 hours of sleep in order to maintain their physical health. You know, I often hit the sack at around 10 pm and get up at 6 am.
地道短语学习：
Maintain physical health : 保持健康
Hit the sack : 睡觉
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