来来往往的,来来往往,往复,动摇

老师一边说话一边在教室前面来来回回的走动。

to-and-fro type vibrating screen

to-and-fro bottle rocker

to-and-fro type herbal medicine slicing machine

to-and-fro

to-and-fro system aerial ropeway

to-and-fro accentuated

to-and-fro sound