move or cause to move slowly or rhythmically backward and forward or from side to side.
he swayed slightly on his feet
同义词：
swingshakeoscillaterockundulatemove from side to sidemove to and fromove back and forthstaggerwobblerocklurchreelrollliststumblepitchkeelveerswervewaverfluctuatevacillateoscillatealternatevarysee-sawyo-yoequivocatehesitateshilly-shallygo from one extreme to the otherhum and hawinformal：wobbleblow hot and cold
