出处：按学科分类—语言、文字 中央民族大学出版社《新英汉大词典上》第120页（218字）
【释义】：
［前缀］①“双”〔A bi-cuspid tooth has two points on its crown．双尖齿有两个根。〕②“两”〔A biennial election takes place every two years．两年一度的选举即每两年进行一次。〕③“复”，“重”〔biannual meetings held twice a year一年开两次的会议〕