基本解釋保險(xiǎn)縂額詞組短語(yǔ)短語(yǔ)total l sum insured 縂保額total sum insured更多詞組專業(yè)釋義商業(yè)保險(xiǎn)縂額經(jīng)濟(jì)學(xué)縂保額