You may find it necessary to readjust the wheels from time to time.

你会发现不时调整轮子很有。

From time to time there was a moan of pain from the sick man.

病人不时发出一声声痛苦的呻吟。

From time to time glady shall we be your guests.

我们将不时地十分荣幸地做你们的客人。

From time to time,she gave him an encouraging nod.

她不时对他点头鼓励。

Old families need an infusion of new blood from time to time.

古老的家族需不时地入新鲜血液。

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。

His wife doesn’t understand that he likes being one of the lads from time to time.

他喜欢时不时和哥们儿聚一聚， 而他的妻子对此很不理解。

New world records in the track and field events are chalked up from time to time in the past few years.

近经常出现新的世界田径纪录。

Craniology, phrenology and eugenics, once-respectable fields of endeavour that are now regarded with a shudder, may shriek from time to time, but few sane people pay attention to them.

这些学科虽然偶尔也会叫嚣一下，但神志清醒的人大多不以为然。