为期的英文：
by a definite date

参考例句：
  • Tuesday was the first day of a three-day pre-trial hearing.
    星期二是为期三天的预审听证会的首日。
  • An annual member
    为期一年的会员
  • Hold a week-long broadcast exhibition of TV plays
    举办为期一周的电视剧展播
  • Hanukkah is a Jewish holiday that lasts eight days.
    光明节是个为期八天的犹太节日。
  • The drivers have now staged two one-day Sunday strikes and two 48-hour midweek shutdowns
    迄今为止，司机们已举行了两次为期一天的星期日罢工和两次为时四十八小时的一周中的罢工。
  • he renounced the SLADE, attended Matisse's short-lived school, and did his best to identify with French tradition
    他放弃了斯莱德美术学校，进入马蒂斯的绘画学校，为期甚短。但他尽力与法国的传统保持一致。
  • a scholarship tenable for three years
    为期三年的奖学金
  • There was a one-day orientation session.
    开了一个为期一天的迎新会。
  • He's got a scholarship tenable for four years.
    他已得到为期四年的奖学金。
  • The agency agreement has been drawn up for the period of one year.
    为期一年的代理协议书已经拟订出来
definite是什么意思：
adj. 清楚的；明确的；确切的；肯定的；有把握的
  • This definition is circular.
    这个定义是循环论证的。
  • The article lacks definition or definite content.
    缺乏确定性或者明确的内容。
  • As officials of the town, this was definitely their business.
    他们既然是这个城镇的官员，这当然是他们的职责所在。
  • By definition, this way of life is parasitic.
    从其含义来说，这是种寄生虫的生活方式。
  • Save the collection definition
    保存收集定义
date是什么意思：
n. 日期；年代；约会；约会对象
v. 鉴定…的年代；注明日期；和…约会
  • Have you fixed on the date?
    日期选定了吗?
  • The From date for the period must be earlier than the To date.
    时间段的起始时间不能晚于结束时间。
  • Date of filling: the actual date of filling the return.
    填表日期:填写办理纳税申报表的实际日期。
  • Can you cancel a date with decorum?
    你能够有礼貌地取消约会吗?
  • I'll have a date tonight.
    今晚我有个约会。

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