toing and froing
US /ˈtɔɪŋ ənd ˈfroʊɪŋ/
UK /ˈtɔɪŋ ənd ˈfroʊɪŋ/

1.
来回, 反复讨论, 反复协商
moving backward and forward or from side to side; a constant movement or activity, often involving discussion or negotiation
:
•
There was a lot of toing and froing before we finally agreed on the terms.
在我们最终同意条款之前,有过很多来回。
•
The constant toing and froing of the pendulum was mesmerizing.
摆锤不停的来回摆动令人着迷。