lǎoshī / yòng / fǔshí / shíyàn / bāngzhù / xuéshēng / lǐjiě / diànhuàxué / fǎnyìng / de / jīběn / yuánlǐ

老师用腐蚀实验，帮助学生理解电化学反应的基本原理。

The teacher uses a corrosion experiment to help students understand the basic principles of electrochemical reactions.