1.
roll over and over, back and forth.
来回地，反复地翻身。
2.
move back and forth, like a ship.
像船一样来回地移动。
3.
He paced up and down the floor of his bedroom.
他在房间里来回地踱步。
4.
He puffed breath in and out.
他来回地吸气吹气。
5.
He was walking back and forth along the corridor.
他沿着走廊来回地走着。
6.
The tennis Ball was hit Back and forth.
网球被来回地击打。
7.
The cheerleaders are jumping to and fro.
拉拉队长们来回地跳跃。
8.
The lion keeps pacing back and forth in its cage.
这头狮子笼子里来回地走来走去。
9.
Back and forth swung the pendulum.
钟摆来来回回地摆动。
10.
Back and forth
来回,往返,来来往往地
11.
the chair rocked rhythmically back and forth.
椅子有节奏地来来回回地摇晃。
12.
They discussed it back and forth, without getting very far.
他们来来回回地讨论，没有很大进展。
13.
To move unsteadily back and forth.
摇晃来回不稳地晃动
14.
We traded jokes.
我们来回不断地说笑话
15.
She kept moving backward ( s ) and forward ( s ).
她不停地来回走动。
16.
move about in a confused manner.
一头雾水地来回走动。
17.
You've come off whole.
你安然无恙地回来了。
18.
Thank goodness I'm back."
谢天谢地，我现在回来了。”