n.智力工作；劳心工作

They arethe flowers of the human brainwork. 这 是 人类思维的花朵.

Industries based on brainwork or knowledge are called the quaternary industry. 以脑力劳动或知识为基础的产业被称为第四产业。

What inspiring chapters! They are the flowers of the human brainwork. 何等动人的一页又一页篇章！这是人类思维的花朵。

What inspiring chapters! They are like the flowers of the human brainwork. 何等动人的一页又一页篇章！这是人类思维的花朵。

But not more comfortable than we need, I can tell you, comrades, with all the brainwork we have to do nowadays. 可是同志们，我可以告诉你们，现在所有的脑力工作得靠我们来做，和我们所需要的程度相比，这些东西并不见得舒服多少。

Nowadays a large number of people engage in brainwork, and lack adequate physical movement. 当今时代有很多人都从事脑力劳动，因而缺乏足够的身体运动。