1. 有时：13. once again 再一次 | 14. now and again有时 | 15. at the age of 在...几岁时

2. 不时地,间或：one after another 一个接一个 | now and again 不时地,间或 | over and over again 一再地

3. 不时：Now accaunt 可转让活期存款帐户 | now and again 不时 | now and then 偶尔

4. 不时地, 有时候：291come to达到某状态 | 292now and again不时地, 有时候 | 293call for需求,要求

adv

1. now and then or here and there

    e.g. he was arrogant and occasionally callous
           open areas are only occasionally interrupted by clumps of trees
           they visit New York on occasion
           now and again she would take her favorite book from the shelf and read to us
           as we drove along, the beautiful scenery now and then attracted his attention

    Synonym: occasionallyon occasiononce in a whilenow and thenat timesfrom time to time