1、时而
... northeastern adj （在）东北的；向东北的；来自东北的 now and then 时而；不时；偶尔 nuclear adj 核子的；原子能的 ...
2、不时
...不经常地、偶尔地 rarely不时地，时常地;偶尔地 Now and then;occasionally.偶尔(地)，不时 occasionally ...
3、偶然
... nothing but 只有, 他到玉狮场村给66棵大树作鸟",只不过 now and then 时而,偶然 off and on 断断续续,间歇地 ...
now w and then时而;偶尔;有时;不时
now look and then现在想想
From now on and then从今而后
T Now and then前卫摇滚
Football Now and Then新老足球赛
A now and then时不时地
elery now and then有时
Houses Now and Then今昔民居
now and then principle此时此地