He planted the first seeds of doubt in my mind.

是他最初启发我起疑心的。

《牛津词典》

At first I gave him the benefit of the doubt.

起初我姑且信了他。

《柯林斯英汉双解大词典》

Without a doubt, you would find it dull at first the loudest sound is usually birdsong.

毫无疑问，一开始你会发现它的声音很沉闷，最大声的声音通常是鸟鸣声。

youdao

"If it is just the first step, we can give Medvedev the benefit of the doubt, though this step is probably rather a clumsy one.

VOA: standard.2009.10.15

At first there was doubt and controversy, which has completely gone away, as more and more examples of this writing have become available and scholars are now able, by and large, to be confident that they know what these things say.

开始的时候还充斥着质疑的声音,而现在已经无可争议,因为已经有,越来越多这样的文字出土,学者们现在,对辨认出这些东西的含义,相当有自信了

耶鲁公开课 - 古希腊历史简介课程节选

Let me disclaim, too, we're by no means perfect so the Harvard courses APP that a lot of you used on the web to shop for courses, we recently sent out a form to get feedback from everyone because we don't doubt that it was imperfect the first time around, but we're going to iterate and make amends with that.

我不是说，我不是说要完美,你们大部分使用哈佛大学课程APP来在网上选课,我们最近给你们发了一个表单，从你们那里,得到反馈，因为我不怀疑,第一次时它是有瑕疵的,但是我们将反复地道歉。

哈佛公开课 - 计算机科学课程节选

Only the first doubt has been settled.

ECONOMIST: The Liberal Democrats

Amazon.com doesn't have anything formal yet, but it recently bought large stakes in Pets.com and Drugstore.com, the first of no doubt many e-commerce investments.

FORBES: Big brothers

All the great personalities of the game have graced the stage there - first (no doubt he would also have said foremost) Grace himself.

BBC: Lord's celebrates Test ton