letter of delegation英 [ˈletə(r) ɒv ˌdelɪˈɡeɪʃn]美 [ˈletər əv ˌdelɪˈɡeɪʃn]代理收款委托书;代理委托书经济双语例句Letter of delegation "Application for collection, Bank of China"中国银行托收委托书