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 test.

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。

点睛

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。

考点归纳

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。