揺らす

(1)move or cause to move back and forth; "The chemist shook the flask vigorously"; "My hands were shaking"

(2)前後に動く、または動かす

(3)move to and fro; "Don't jiggle your finger while the nurse is putting on the bandage!"

(4)shake or vibrate rapidly and intensively; "The old engine was juddering"

(5)急速に集中的に震動するか振動する

(6)cause to move back and forth; "rock the cradle"; "rock the baby"; "the wind swayed the trees gently"

(7)前後に動く理由

(1)