本集节目要回答单词 “survey、research” 和 “investigate” 做动词时的区别。这三个词语都可以表示 “调查” 的意思，但应如何恰当使用它们？比如，哪个词可指 “通过问卷进行调查”？哪一个指 “耗时长、以得出新发现或以结论为目的的研究”？这集《你问我 ...

These three words share similar meanings, but also have differences in usage. Which one do you think is the most commonly used?

MEXICO CITY, June 11 (Xinhua) -- The Mexican government on Wednesday rejected media reports that the United States has pressured Mexico to investigate, prosecute or extradite officials allegedly tied ...