I have no doubt about it.
我对此毫无疑虑。
She expressed her doubt openly.
她公开表达了她的怀疑。
Do you doubt his honesty?
你怀疑他的诚实吗？
There is some doubt in my mind.
我心中有些疑问。
He never had a doubt.
他从未有过怀疑。
They cast doubt on the plan.
他们对这个计划表示怀疑。
I doubt it will rain.
我怀疑会下雨。
She has serious doubts.
她有严重的怀疑。
We should not doubt his ability.
我们不应怀疑他的能力。
He began to doubt himself.
他开始怀疑自己。
no doubt
无疑, 很可能
without doubt
毋庸置疑地
there is no doubt that
毫无疑问...；无疑地
doubt about
怀疑；对…有疑问
be in doubt
不肯定；不确定；拿不准
复数: doubts;
第三人称单数: doubts;
过去式: doubted;
过去分词: doubted;
现在分词: doubting;
