He'd move his fingers clumsily on the piano, and then she'd take his place.

他会在钢琴上笨拙地移动自己的手指，然后她会接替他的位置。

youdao

He was clumsily trying to grab at Alfred's arms.

他正笨手笨脚地试图抓住艾尔弗雷德的手臂。

《柯林斯英汉双解大词典》

Her numb leg gave way beneath her and she stumbled clumsily.

她那麻木了的腿一软，她便重重地摔了一跤。

《牛津词典》

Wine geeks to a man or woman hate super-rich, clumsily tannic, high-alcohol wines--just ask them.

FORBES: Faking It

Anyway, governments in rich countries also intervene a lot, and very often as clumsily.

ECONOMIST: Out of anarchy

We managed to easily knock the speaker over trying to fiddle with it's clumsily locking switch.

ENGADGET