记事本

tā yòu kāi shǐ zài tā de jì shì běn shang liáo cǎo de jì lù

他又开始在他的记事本上潦草地记录。

He went back to scribbling in his notebook.

gōng chéng shī zài jì shì běn shang huà de cǎo tú

工程师在记事本上画的草图

a diagram the engineer had roughed out on his notepad