doubtfully 

英汉解释

adv. 怀疑地；含糊地

同义词

r. dubiously

参考例句

1. "Can you …?" I asked doubtfully.
“你能…?”我怀疑地问着。
2. She looked doubtfully at him, at the low shanty .
她犹豫不定地看着他，看着那间矮棚屋。
3. Po: (looks at Doug doubtfully) Why do you dedicate for me? Who are you anyway? How come do you even know my name? Are you my sister?
博：（疑惑地看著豆豆）你为什麽这麽帮我?你到底是谁?为什麽连我姓童都知道?你难道是我妹子?

英英解释

adv.
  1. in a doubtful manner

网络释义

doubtfully
怀疑地; 半信半疑;
disbelievingly doubtfully dubitatively enquiringly skeptically
怀疑地;