moved back and forth短语¹⁴⁴⁹⁷²⁺² 基本例句 来回移动 Throughout the morning, she moved back and forth between the kitchen and the living room. 整个早上，她在厨房和起居室之间来回奔走。 yeeyan Vehicles moved back and forth in front of me, and they looked like very busy. 车子在我面前开来开去，好像很忙似的。 blog.sina.com.cn