Was under obligation to pay or return money or goods

• Had a debt to someone

英语动词 owe 的一般过去时和过去分词

• 负有偿还或履行某事的债务或义务

Was obliged to do something for someone

• Was bound by duty or favor

归因于；由于（与 to 连用）

Was attributable to

• Happened because of; used with to

到期未付的；未清的

• 应支付给某人或机构的

Unpaid or due to be paid

• Outstanding as a debt