Indefinite limit
不定时───From time to time;极───extremely
Her daughters visited him from time to time when he was bedridden.───他卧床不起时她的女儿们不时地来探望他。
She sat silently, flinging the odd word into the conversation from time to time.───她静静地坐着, 在谈话过程中不时插上一两句话.
From time to time he passed on confidential information to him.───他时不时告诉他一些机密信息。
Birders in the area say that parakeets will visit home bird feeders from time to time.───这一带的猎鸟者称这些鹦鹉有时会“拜访”养鸟人.
Marx's perspective on modernity a single one but varied from time to time.───马克思对现代性问题的理解,在不同的历史时期观察的视角发生不同的转换.
From time to time a telephone would ring in the brokers'offices.───那两排经纪人房间里不时响着叮令的电话.
From time to time he fired questions at me.───他不时向我提出许多问题.
I often find that a trip local library to quietly work from time to time helps.───我发现偶尔去图书馆转转会让你获益匪浅.
Old families need an infusion of new blood from time to time.