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 ...

CANBERRA, May 20 (Xinhua) -- One in eight Australians can't identify the location of the Great Barrier Reef, despite its global fame and environmental importance, according to new research from the ...