From the accounting point of view, the key into the list is the unique ID that the accounting system assigns to the transaction.

从会计角度看，列表的键是会计系统分配给交易的惟一id。

youdao

An example transaction from the audit point of view.

从审计角度来看的一个示例交易。

youdao

From the economic point of view, if the cost of default is zero, the constraint will be lost, inevitably leading to the loss of transaction security.

从经济学角度，如果当事人违约成本为零时违约行为将失去约束，必然导致交易安全的沦丧。

youdao