债的履行（performance of obligation），是指债务人按照合同的约定或者法律的规定全面履行自己所承担的义务的行为。是债最主要的效力，也是债务人最主要的义务。

债的履行与给付、清偿不同。给付指债务人应为的特定行为，常在债的标的上使用，具有抽象、静态的含义；清偿则指债务人履行的效果，通常在债的消灭原因上使用；履行则指债务人实施债的内容所要求的特定行为，具有具体的、动态的含义。债权人分立、合并或者变更住所没有通知债务人，致使履行债务发生困难的，债务人可以中止履行或者将标的物提存。

债务的提前履行（advance performance of obligation）：

《合同法》第七十一条：

债权人可以拒绝债务人提前履行债务，但提前履行不损害债权人利益的除外。

The obligee may reject the obligor's advance performance of its obligations, except that the advance performance does not harm the obligee's interests.

债务人提前履行债务给债权人增加的费用，由债务人负担。

Any additional expense incurred by the obligee due to the obligor's advance performance of its obligations shall be borne by the obligor.

债务的部分履行（partial performance of obligation）：

《合同法》第七十二条：

债权人可以拒绝债务人部分履行债务，但部分履行不损害债权人利益的除外。

An obligee may reject the obligor's partial performance, except that the partial performance of its obligations does not harm the obligee's interests.

债务人部分履行债务给债权人增加的费用，由债务人负担。

Any additional expense incurred by the obligee due to the obligor's partial performance of its obligations shall be borne by the obligor.

参考双语例句：

Thus, a model law may embrace: (a) both consensual and non-consensual security rights; (b) security rights in both movable and immovable property; (c) possessory security rights and mere enforcement preferences; and (d) the use of title to secure performance of an obligation.

因此，示范法可囊括：(a)合意和非合意担保权；(b)动产和不动产担保权；(c)占有式担保权和单纯的执行优先；以及(d)使用产权来担保债务的履行。

In situations where the secured creditor proposes to a grantor/licensee to acquire the licence in total or partial satisfaction of the secured obligation and neither the grantor nor any other interested party (such as the debtor, any other person owing performance of the secured obligation or any person with rights in the encumbered asset; see recommendations 156-158) object (and the licence agreement does not prohibit the transfer of the licence), the secured creditor becomes vested with the licence according to the terms of the licence agreement between the licensee and the licensor.

如果有担保债权人向设保人/被许可人提议以获得许可来作为对附担保债务的全部或部分清偿，而且设保人或任何其他相关方（诸如债务人、应履行附担保债务的其他任何人或对设保资产享有权利的任何人；见建议156-158）均无异议（且许可协议不禁止转让许可），则有担保债权人便按照被许可人和许可人之间许可协议的条款取得许可。

To borrow or raise money in such manner as the Company shall think fit, and in particular by the issue of debentures and to secure the repayment of any money borrowed, raised or owing, by mortgage, charge, or lien upon the whole or any part of the Company’s property or assets (whether present or future) including its uncalled capital, and also by a similar mortgage, charge, or lien to secure and guarantee the performance by the Company of any obligation or liability it may undertake.

按本公司认为合适之方式借入或筹集款项，特别是透过发行债权证及透过按揭、抵押或留置本公司全部或任何部分财产或资产（不论现时或日后之财产或资产）（包括其未催缴股本），担保偿还任何借款、所筹集款项或欠款，此外，亦透过类似按揭、抵押或留置权，担保及保证本公司履行其可能承担之任何义务或负债。