根據Shorter Oxford English Dictionary 6，在幾百年前doubtful確有驚恐的意思，但這用法現在已屬過時。另外說到英語用法的解說，我們應盡量避免以偏 ... ...

be doubtful of的用法和樣例：. 例句. He was under suspicion of theft. 他被懷疑有偷竊行為。 I'm doubtful whether ... ...

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" 例句. The player was doubtful of the judge's call. It is doubtful that anyone can accura...

LINE it! ... 例句與用法：. The ethics of his decision are doubtful. 他的這一決定是否合乎道德規範值得懷疑。 It is doubtful ...

比如：「be sceptical about something（對某事半信半疑）」；「remain sceptical（將信將疑）」。來通過下面的兩個例句，鞏固對「sceptical」 的用法...