adj.& adv. 〈英〉两星期(发生、出现)一次的[地],每两周的[地]
n. 双周刊
The committee meets fortnightly.
委员会两星期开一次会。
Meetings take place at fortnightly intervals.
每两周开一次会。
In November, it will start fortnightly publication, and in January it goes weekly.
从11月开始,它将每月出版两次,到了1月则每周1次。
I pay my rent fortnightly.
我每两周付一次租金。
There is a fortnightly party tonight.
今晚有个两周一次的聚会。