She felt sorry for the caged lion pacing back and forth endlessly.
她为那只在笼子里来回踱步、永无止境的狮子感到难过。
The umbilical vessels carry vital nutrients back and forth between fetus and mother.
脐带里的血管在母体和胎儿之间来回输送重要的营养物质。
There are occasional buses that run back and forth between countries.
Such negotiations can go back and forth multiple times between the parties.
He enjoyed playing games that involved tossing a beanbag back and forth.
他特别喜欢玩那种来回互相掷沙包的游戏。
She watched the juice slosh back and forth inside the glass.
她看着果汁在杯子里来回晃荡。
Running back and forth from the kitchen to the patio gets old.
从厨房里来回运行到露台变老。
Jiggle your hand back and forth do not cause discomfort.
摇晃你的手来回不会引起不适。
The hips swing opposed to the steps clearly visibly back and forth.
臀部摆动的步伐显然明显反对来回.
The reviewer also criticized the sometimes tedious back and forth travel.
评论还批评间或乏味的来回折行。
You flip back and forth between the two pages by swiping.
您两个页面之间来回翻转刷卡。
She was waving a pot of it back and forth.
她挥舞着它的锅来回。
Optoelectronic devices convert back and forth between electrical and optical signals.
光电器件对电信号和光信号进行来回转换。