He undertook to finish the job by Friday.
他答应在星期五以前完成那项工作。
He undertook to defend this attitude.
他开始为这一态度辩护。
He undertook to teach the dog better manners, punishing him if he barked before some stranger actually started to fiddle with the front door.
他于是着手训练狗变得更文明一些,如果它在陌生人动前门前吠叫将受到惩罚。
He undertook to inform everyone concerned.
他同意通知每个有关人员。
He undertook to be here at five.
他答应五点钟到这里来。
He undertook to revise the composition for me.
他许诺为我修改作文。
He undertook to pay the money back within six months.
他保证六个月之内还钱。
He undertook to pay the money back in one month.
他答应在一个月之内还钱。
He undertook to preserve a strictly neutral position.
他承诺严守中立。
He undertook to improve the working arrangements.
他答应改善工作安排。
He undertook to improve the working arrangements.
他答应改进工作安排。
He undertook to be here at ten o 'clock.
他答应十点钟到这儿来。