undertake
过去式：undertook
过去分词：undertaken
现在进行时：undertaking
词形变化：
动词过去式: undertook | 动词过去分词: undertaken | 动词现在分词: undertaking | 动词第三人称单数: undertakes |
词义辨析：
同义:
vt.试图; 进行, 从事
try
attempt
endeavor
essay
pursue
vt.同意; 答应; 保证
promise
contract
agree
同义参见:
essay2
play
tackle