撤销 chèxiāo to repeal
to repeal; to revoke; (computing) to undo
How to remember 撤销: 撤 to omit + 销 to fuse = to repeal.
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How it is used
- To revoke/annul/cancel officially - 撤销职务 (chèxiāo zhíwù) remove from office, 撤销决定 (chèxiāo juédìng) rescind a decision.
- Formal: nullifying an official order, appointment, or ruling; also the computing 'undo' (撤销操作).
- Contrast 撤回 (chèhuí, withdraw/recall something sent); 撤销 cancels the validity of something already in force.