You might expect that the student who had undertaken the most exhausted search would be the most satisfied with their final decision, but it turns out that's not true.
出自-2011年6月听力原文
柯林斯高阶英汉双解学习词典释义
VERB
着手做;从事;承担
When you undertake a task or job, you start doing it and accept responsibility for it.