给孩子们更多的时间去玩耍

词汇讲解：
1. implement vt. 实施; 执行
例句：The government promised to implement a new system to control financial loan institutions.
政府许诺要实施新的制度来控制金融贷款机构。

2. essential adj. 必不可少的, 绝对必要的; 非常重要的
例句：Food is essential for life.
生命离不开食物。

3. motivate vt.作为…的动机; 激发; 诱发
例句：You have first got to motivate the children and then to teach them.
你首先得激发孩子的学习兴趣, 然后再去教他们。

4. relieve vt. 缓解, 消除, 减少
例句：The doctors did their best to relieve the patient.
医生们尽力减轻病人的痛苦。

5. burden n. 重负
例句：His invalid father is becoming a burden.
他父亲体弱多病, 对他来说渐渐成了累赘。

6. purchase vt. 买,购买
例句：He purchased this stamp at an auction.
他在拍卖会中购得这枚邮票。

7. enrollment n. 注册,入会,入学等的人数
例句：Middle school enrollments will peak this year.
今年中学入学人数将达到高峰。

8. dilemma n. 困境,进退两难
例句：Mary is facing the dilemma of obeying her father or marrying the man she loves.
是服从父亲还是嫁给自己所爱的人是玛丽面临着的难题。

9. enroll v. 使入会;使入学,招(生);使入伍,征(兵)
例句：The school will enroll new students in August.
这所学校将于八月份招收新生。

10. curriculum n. 学校的全部课程
例句：The student is very knowledgeable because he also studies things not in the curriculum.
这个学生知识很丰富,因为在学校课程以外他还学习别的东西。