拖動力

motive force / traction

variant of 拖[tuo1]

to drag / to tow / to trail / to hang down / to mop (the floor) / to delay / to drag on

to drag / to tow / (computing) to drag (mouse operation)

(of sth) to move / to set in movement / to displace / to touch / to make use of / to stir (emotions) / to alter / abbr. for 動詞|动词[dong4 ci2], verb

motive power / force / (fig.) motivation / impetus

power / force / strength / ability / strenuously