/bɪl ʌv ɪksˈʧeɪndʒ/ – Phrase
Definition: Tài liệu yêu cầu trả nợ.
A more thorough explanation: a document ordering the payment of money, drawn by one person or bank on another
Example: This type of legal procedure will only take place if the debt is documented by means of a bill of exchange, cheque or promissory note.