397. I have no doubt that virtually all of these people were taught in school that the earth revolves around the sun; they may even have written it on a best.

英语四级译文:
我毫不怀疑这些人几乎都在学校学过地球围绕太阳旋转，他们甚至可能在考试中这样写过。

四级词汇讲解:
have no doubt that本意为“对...毫无疑问”，that引导的是同位语从句。如:
I have no doubt that you will win.我毫不怀疑你会赢。

virtually意为“事实上，实际上;几乎”。如:
He virtually promised them the project.他算是答应把项目交给他们做。

revolve意为“在轨道上运行”，也可指“旋转”。如:
The wheel revolves round its axis.轮子绕轴旋转。

四级词汇讲解:
有关doubt的短语有:

※ beyond a/any/all doubt意为“无疑地”。如:
She was beyond all doubt the best dancer.她无疑是最棒的舞者。

※ without doubt意为“无疑地，确实地”。如:
You are without doubt the cleverest student of the class.你无疑是班里最聪明的学生。

※ in doubt意为“不肯定的，不确定的”。如:
Their acceptance of the offer was still in doubt.他们是否接受那份工作还说不准。

※ no doubt意为“无疑地，很可能”。如:
No doubt she meant to help, but in fact she got in the way.她确实想帮忙，而事实上却帮了倒忙。