重点讲解：

colleague

n. 同事，同僚

He has told me about the new colleague.

他已经向我告知新同事的情况。

treatment

n. 治疗，疗法；处理；对待

She is under treatment.

她正在进行治疗。

diorama

n. 透视画；西洋景；立体模型

Daguerre thought that the process developed by Niepce could help speed up his diorama creation.

达盖尔认为尼埃普斯发明的这一过程可以帮助加快透视画的制作。