More recently, however, some companies have been investing money in a more ambitious undertaking: learning how to adjust the fundamental make-up of the food they sell.
2016年12月四級真題（第二套）閱讀 Section C
英語六級真題
Why is Google undertaking such a venture?
出自-2011年12月閱讀原文
It is basically a social undertaking.
出自-2010年6月閱讀原文
柯林斯高階英漢雙解學習詞典釋義
N-COUNT
（尤指艱巨的）任務，工作，事業
An undertaking is a task or job, especially a large or difficult one.