由第三方履行的合同,由第三人履行的契约 contract to be performed by third party: 由第三方履行的契约contract party: 合同方; 签约双方party to a contract: 合同当事人; 契约当事人, 立约当事人performed: 履行; 执行的,完成的to be performed: 将要被演奏下载手机词典可随时随地查词查翻译