fumble 1.to use your hands in an awkward way when you are doing sth or
looking for sth 笨手笨脚地做(某事);胡乱摸找(某物) 2.to have difficulty speaking
clearly or finding the right words to say 笨嘴拙舌地说话;支支吾吾地说
percussion 1.musical instruments that you play by hitting them with your
hand or with a stick, for example drums 打击乐器;敲击乐器 2.the players of
percussion instruments in an orchestra (管弦乐团的)打击乐器组