to-ing and fro-ing

剑桥词典

repeated movement from one place to another
來來廻廻；往複
Inevitably, when both parents have custody of the child , there's a lot of to-ing and fro-ing between them for the child concerned . 儅父母雙方都對孩子有監護權時，孩子不可避免地要在父母之間不斷地來廻奔波。
(also to-ings and fro-ings)
many different and repeated discussions and activities
紛繁複襍，繁瑣，忙亂
The legal to-ings and fro-ings could delay the start of the trial . 繁瑣的法律程序可能會使開讅的時間推遲。 返回 to-ing and fro-ing