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 ...

SYDNEY, Dec. 15 (Xinhua) -- Australia's waterbird population made a partial return after last year's steep drop, but numbers remain well below historic levels, one of the world's longest-running ...

TAIYUAN, Dec. 16 (Xinhua) -- China on Tuesday sent a new satellite into space from the Taiyuan Satellite Launch Center in the northern province of Shanxi, in a move to enhance the country's survey and ...