fumble的過去式和過去分詞

　　例句：

　　During the interview, she fumbled helplessly for words.

　　面試時她支支吾吾找不出適當(dāng)?shù)脑捳Z。

　　He fumbled with the buttons on his shirt.

　　他笨手笨腳地擺弄他襯衣上的紐扣。

　　She fumbled in her pocket for a handkerchief.

　　她在她口袋里胡亂摸找手帕。