() [] an important customer, usually a company, that does business with another company in many different parts of a country全国性客户；大客户◆As a national account, your company will receive many benefits and cost savings.作为大客户，贵公司将会得到许多好处，并可节省费用。 () [, ]the financial records of a country国民账户；国民核算；国民核算账户◆It will be classed as a private sector company for the purposes of the national accounts.出于国民核算的目的，它被列为私营公司。◆China's national accounts中国的国民账户