英语听力精选进阶版 17797

 

Can We Live Without Cash?

SAT 2 JAN 2016

Could pocket change soon be a thing of the past? Paul Lewis and guests investigate¹.

1 investigate   

vt.调查，调查研究；vi.调查，调查研究

参考例句：

• Police investigate the cause of car accident.警察调查车祸的原因。
• The government of the United States began at once to investigate the case.美国政府立即开始调查此案。