"doubtful" 相關課程教材 ... No doubt. 毫無疑問。 ... There's no doubt about it! 這點無庸置疑！ ... There's no doubt...

1. 懷疑的，疑惑的[F][（+about/of）][+wh-] I'm doubtful whether she's still alive. 我懷疑她是否還健在。 2. 可疑的，令人生疑的 ...

It is doubtful whether/if they ever reached the summit before they died. 他們死前不太可能到過山頂。 It was dou...

doubtful的意思、解釋及翻譯：1. If you are doubtful about something, you are uncertain about it: 2. If a sit...

doubtful中文::可疑的…，點擊查查權威綫上辭典詳細解釋doubtful的中文翻譯，doubtful的發音，音標，用法和例句等。 简体版 English Hind...

Doubtful definition is - lacking a definite opinion, conviction, or determination. How to use dou...