词汇	optimal tax system
释义	optimal tax system 最优税制
随便看	setting-up time setting up time of an international call Setting Up Trac on CentOS setting up wide construction joints setting up words Setting Up Your Communicator password Setting Up Your Data Sources Setting user and group options settingvalue setting value setting value management setting value of the characteristic quantity setting valve setting velocity setting vessel setting view setting virtue standards setting vise setting voltage setting volume setting way setting wedge setting wheel setting wheel distance piece setting wheel spring