exemptionn.免除(税)
exemption standards豁免标准
exemption from duty免税
exemption for blind盲人免税
exemption mechanism免税机制
exemption of income免税收益
exemption plastering免抹灰
exemption from taxes豁免
exemption securities免税证券
exemption from rates[经] 豁免捐税
exemption of civilian平民豁免权