短语词组短語tax x base 稅基;計稅基數Erosion of tax base 稅基腐蝕preferential tax base 稅基式優惠Tax Base If 應稅the tax base 計稅基礎Borden Tax Base 擴濶稅基wide tax base 寬稅基economic tax base 經濟稅基Widen tax base 全麪征稅 返回 tax base