短语词组短语doubtful case [法]疑案;无罪推定doubtful point 疑点;难以断定的含义doubtful species 可疑种doubtful about 怀疑的，可疑的；对…怀疑doubtful hit 可疑剑;可疑刺或劈;可疑刺doubtful since 呆自Doubtful meets 呆会见doubtful of 怀疑的，可疑的；对…怀疑 返回 doubtful