Question

这本书的作者是一个退休上校，他过去常参与策划间谍活动。 zhè běn shū de zuó zhě shì yī gè tuì xiū shàng xiào， tā guò qu cháng cān yù cè huà jiàn dié huó dòng。

Accepted Answer

The book was written by a retired colonel who used to take part in cloak and dagger plots.

Expression	这本书的作者是一个退休上校，他过去常参与策划间谍活动。
Meaning	The book was written by a retired colonel who used to take part in cloak and dagger plots.
Reading	zhè běn shū de zuó zhě shì yī gè tuì xiū shàng xiào， tā guò qu cháng cān yù cè huà jiàn dié huó dòng。

这本书的作者是一个退休上校，他过去常参与策划间谍活动 Book Written Retired Colonel Part Cloak Dagger