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1·He gets ratty if he doesn't get enough sleep.

他要是睡眠不足动不动就发脾气。《牛津词典》

2·Enough sleep is important to us.

充足的睡眠对我们很重要。

3·Enough sleep helps the brain and body grow.

充足的睡眠有助于大脑和身体的发育。

4·Schools are taking action to make sure the students can get enough sleep.

学校正采取行动，确保学生能获得充足的睡眠。

5·If they don't get enough sleep at night, they will face more challenging situations in schoolwork.

如果他们晚上没有充足的睡眠，他们将在学业上面临更多挑战。

6·Only if schools, families and students join hands together, can students get enough sleep and be at their best in schoolwork.

只有学校、家庭和学生齐心协力，学生才能有充足的睡眠，在学业上发挥最佳状态。

7·They get enough sleep.

他们有充足的睡眠。

8·New evidence shows why getting enough sleep is a top priority.

新的证据表明为什么充足的睡眠是头等大事。

9·Students who don't get enough sleep have poorer attendance and lower grades.

睡眠不足的学生出勤率较低，成绩也较差。

10·Doctor, I haven't been able to get enough sleep lately, and I'm too tired to concentrate in class.

医生，我最近睡眠不足，上课也很困倦，无法集中注意力。