短語詞組短語labour doubtfully 難以預料地勞動add doubtfully 難以預料地增加attack doubtfully 難以預料地攻擊declare doubtfully 難以預料地斷言lie doubtfully 難以預料地撒謊doubtfully detail 迷惑不解地disbelievingly doubtfully dubitatively enquiringly skeptically 懷疑地 返回 doubtfully