fly-back 回扫
fly-back hand 回零针
fly-back time 回扫时间 ; 返驰时间
fly-back line 回程线
Time Fly Back 时光倒流
fly-back period 回扫周期
N the fast return of the spot on a cathode-ray tube after completion of each trace (阴极射线)回描
Drive to the airport and fly back to Shanghai.
开车到机场，然后乘飞机回上海。
She hasn't decided whether she will fly back to China because of the COVID-19.
因为新冠疫情，她还没有决定是否会飞回中国。
If two flying insect populations took up residence in separate nearby valleys, chances are that individuals from each population would fly back and forth, continuing gene flow.
如果有两个飞行昆虫种群居住在相距不远的不同山谷中，那么任一种群中的个体都有可能来回飞行，从而使基因流动继续。
"There are travelers who are stranded in Asia who cannot fly back home. At the same time, goods and services cannot be delivered."
VOA: standard.2010.04.19
"There are people stranded in Europe who cannot fly back home to Asia."
VOA: standard.2010.04.19
She made speeches about flying. And she continued to fly by herself across the United States and back.
VOA: special.2010.05.26
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