deadline n. 最后期限

deal n. 营业协议，数量 v. 交易

dealer n. 商人

debit n. 借方，欠的钱

v. 记入帐户的借方

debt n. 欠款，债务

to get into debt 负债

to be out of debt 不欠债

to pay off a debt 还清债务

debtor n. 债务人

aged debtors 长期债务人

declare v. 申报，声明

decline n./v. 衰退，缓慢，下降

decrease v. 减少

deduct v. 扣除，减去

default n. 违约，未履行

defect n. 缺陷

defective adj. 有缺点的