您要查找的是不是：
- I doubt whether he is in good faith. 我怀疑他是否有诚意。
- I doubt whether he is sincere. 我怀疑他是否诚实。
- His offence is so serious that I doubt whether he can be pardoned for it. 他的过错十分严重。我怀疑他是否会得到原谅。
- Then again, I doubt whether he will come. 再说,我怀疑他是否会来。
- I doubt whether [if] he is at home. 我看他不一定在家。
- I doubt whether he had any real understanding of Shakespeare. 我怀疑他是否真正理解莎士比亚的作品。
- He is so closely hemmed in on all sides that I doubt whether he could escape even if he grew a pair of wings. 密密层层的天罗地网， 我看他插翅难飞。
- I doubt whether he will recover. 我不知道他是否能康复。
- I doubt whether he will come soon. 我怀疑他是否会很快来。
- I doubt whether he will recover . 我不知道他是否会康复。
- I doubt whether he will succeed. 我怀疑他是否可以成功.
- I doubt whether he will keep his word. 我怀疑他是否回遵守诺言.
- I doubt whether he likes this book. 我怀疑他是否喜欢这本书。
- I doubt whether he will keep his word/ promise. 我怀疑他是否会遵守诺言。
- I am doubtful whether he is still alive. 我怀疑他是否还活着。
- I am doubtful whether he is still alie. 我怀疑他是否还活着。
- I doubt whether he hasany real understanding of Shakespeare. 我怀疑他是否真正理解莎士比亚的作品。
- I doubt whether he can show real backbone at the critical moment. 我怀疑他是否能在关键时刻显示出真正的英雄气概。
- I doubt whether he have any real understanding of shakespeare. 我怀疑他是否真正理解莎士比亚的作品。
- I think he is sincere and quite without affectation. 我认为他为人诚挚，毫不做作。
