undertook

动词 undertake:

1. enter upon an activity or enterprise
   同义词：undertake, set about, attempt
2. accept as a challenge
   同义词：undertake, tackle, take on
3. promise to do or accomplish
   同义词：undertake, guarantee
4. enter into a contractual arrangement
   同义词：contract, undertake
5. accept as a charge
   同义词：undertake, take in charge

1. He undertook to defend this attitude.
   他开始为这一态度辩护。
2. She undertook to discharge all the responsibilities of a Minister.
   她承担了做部长的所有责任。
3. I undertook to indemnify them for expenses incurred on my behalf.
   我负责偿还他们为我而用的全部花费。
4. He undertook to finish the job by Friday.
   他答应星期五之前完成这项工作。