to-ing and fro-ing

劍橋詞典

repeated movement from one place to another
來來回回；往復
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 . 當父母雙方都對孩子有監(jiān)護權(quán)時，孩子不可避免地要在父母之間不斷地來回奔波。
(also to-ings and fro-ings)
many different and repeated discussions and activities
紛繁復雜，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審的時間推遲。 返回 to-ing and fro-ing