1 in a period not longer than a particular length of time 在某段时间内:
I'll be back within an hour.我一小时内回来。She got married, found a job and moved house, all within a week.她结了婚,找到了工作,搬了家,这一切都发生在一个星期内。
2within sth (of sth) not further than a particular distance from sth 在某距离内:
The house is within a kilometre of the station.房子离车站不到一公里的地方。
3 not outside the limits of sb/sth 在某范围内:
Each department must keep within its budget.每个部门的开支都必须维持在预算以内。
4 (formal 正式) inside sb/sth 在…内:
The anger was still there deep within him.他内心深处仍然很生气。
within/wIðˋIn; wIðˈIn/adv , prep 1 before a certain period of time has ended 在〔某段时间〕之内﹐不超过: Payment must be made within 28 days. 28 天之内必须付款。Within a year he was dead. 不到一年时间他就去世了。2 less than a certain distance from a place 在〔某距离〕之内: We live within four miles of each other. 我们两家距离不到四英里。3 inside a group, organization, building, or area 在〔团体﹑组织﹑建筑物或某地区〕里面: critics within the party 党内的批评者footpaths within the national park 国家公园内的小径4 if something stays within a particular limit or set of rules, it does not go beyond that limit 不出〔规定的范围或限度〕﹐在〔规定的范围或限度〕之内: The company has acted within the law . 该公司在法律范围之内从事活动。5 literary inside a person's body or mind【文】在…体内﹔在…内心: A feeling of happiness grew within her. 她内心感到一阵欣喜。
withinpreposition1before the end of: I'll be back within an hour.2not further than: We live within a mile of the station.3(formal) inside: There are 400 prisoners within the prison walls.