学校的新政策禁止学生在校园内使用手机。

The school's new ___policy prohibits students from using phones on campus.

我需要检查一下我的医疗保险单是否包含牙科治疗。

I need to check if my dental treatment is covered by my health ___policy.

提前预订是明智之举，可以避免旺季涨价。

Making reservations in advance is good ___policy to avoid peak season price hikes.