uselessly

基本解释

I mounted the back steps through a heavy accounting of discarded microwave-dinner trays and a tidal drift of feed bags and knocked uselessly at the door.
我爬上后面的台阶，穿过一大堆估计是用于微波炉中的托盘，四处飘荡的食品袋无助地拍打着屋门。
At last there was Waterloo, and Morrel came no more; he had done all that was in his power, and any fresh attempt would only compromise himself uselessly.
最后发生了滑铁卢之战，莫雷尔就不再来了。他已尽了他力所能及的一切，这时任何新的尝试不仅徒劳无益而且很可能会有害他自己。
Today, some of those victims, their stumps hanging uselessly and conspicuously by their sides, wander along on the opposite side of the street from their former tormentors.
今天，当年的一些受害人带着自己无用但却张扬地悬在两侧的假肢，在街道的对面闲荡，躲避之前对他们施刑的恶人们。

"A large number of patients are being treated uselessly, " says Fernando Martinez, professor of pediatrics at the University of Arizona.
FORBES: Magazine Article
Most kites have a wrist leash that releases one side of the kite when the surfer lets go of the control bar, so the kite flaps uselessly like a flag instead of dragging the surfer underwater (it can happen).
FORBES: Hook In and Hold On
My companion could not have known that this would hold up as the lone MacGyver moment in a lifetime of my standing around uselessly while other people fix stuff, but she can attest to it now, as she has usually been the one, since then, doing the fixing.
NEWYORKER: Looking for Someone