The average stay for visitors to most other national parks is just four hours.

大多数其他国家公园的游客平均停留时间仅为4小时。

The average stay for an inmate here at Metro Jail would be about 17 days.

一般人在地铁县的监狱里大概待17天左右。

The average stay in a nursing home lasts 17 months and costs 57,000 (85,000) according to the Centre for Economics and Business Research, a think-tank.

据一智囊团——英国经济和商业研究中心称，在护理之家平均停留时间长达17个月，花费达57000欧元（合85000美金）。