Back and forth
Meaning: in one direction, then the opposite way, then in the original direction again many times
Example: He has to travel back and forth between London and Paris every week.
Example: He has to travel back and forth between London and Paris every week.
Baihou English - грамотный разговорный английский за 9 месяцев до уверенного владения по системе естественного усвоения иностранных языков.
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