fortnight
/ˈfɔ:tnaɪt; `fɔrtnaɪt/ n
(usu sing 通常作单数) (esp Brit)
1 (period of) two weeks 两星期（的时间）; 两周
a fortnight's holiday 两周的假期
a fortnight ago 两星期前
a fortnight today/tomorrow/on Tuesday, ie two weeks after the day specified 自今天[明天/星期二]起两周之後.
2 (idm 习语) this day fortnight => day.