要約的撤回英語怎麼說及英文翻譯

A. 要約的撤銷英語

撤銷要約的通知到達A後,A才發出承諾,此時該要約已經撤回,A的承諾不構成合同成立的要件,更不用提合同生效了
After the cancellation important contract notice arrives A,A onlythen sends out the pledge,this time this important contract alreadywithdrew,the A pledge did not constitute the contract establishmentthe important document,did not need to raise the contract to become effective