doubt

vt.[W]

1. 懷疑；不相信；不能肯定[+whether/if][+that]
   I doubt whether Tom has taken my watch.

   我不太相信湯姆拿了我的手錶。

   The judge doubted him.

   法官懷疑他。

   I do not doubt that he will succeed.

   我肯定他會成功。

2. 【古】恐怕[+（that）]

vi.

1. 懷疑[（+of/about）]
   They doubted of the feasibility of the project.

   他們對這個計畫的可行性表示懷疑。