演示 is composed of 演, which conveys performing or acting, and 示, which conveys showing or indicating; their combination directly yields the meaning of demonstrating or showing a process.
Example Sentences
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他正在演示软件。
Tā zhèngzài yǎnshì ruǎnjiàn.
He is demonstrating the software.
今天下午老师将演示实验步骤。
Jīntiān xiàwǔ lǎoshī jiāng yǎnshì shíyàn bùzhòu.
This afternoon, the teacher will demonstrate the experimental steps.