还原 huányuán to restore to the original state
to restore to the original state; to reconstruct (an event); reduction (chemistry)
How to remember 还原: 还 still + 原 original = to restore to the original state.
Characters
How it is used
- To restore something to its original state - 把现场还原 (bǎ xiànchǎng huányuán) to reconstruct the scene, 数据还原 (shùjù huányuán) to restore data.
- Note the reading is huán (to return), not hái; 还 as "to return/give back" drives the meaning.
- Also the chemistry term reduction (opposite of 氧化 oxidation) - 氧化反应 (yǎnghuà fǎnyìng) an oxidation reaction.