documentary collection短语¹⁴⁴⁹⁷²⁺² 基本例句 跟单托收 For export trade finance, it involves overdraft and loan, packing loan, letter of credit negotiation, outward documentary collection advance, export discount and etc; 其中，出口贸易融资业务涉及了贷款和透支、打包贷款、出口信用证押汇、出口托收押汇、出口贴现等； cnki