閱讀難度：

A large metallic space ball fell out of the sky on a remote grassland in Namibia, prompting authorities to contact NASA and the European space agency, the Daily Telegraph reported.

The hollow ball, which has a circumference of 43 inches (109.22 cm), was found near a village in the north of Namibia some 480 miles (768 km) from the capital Windhoek.

Locals had heard several small explosions a few days beforehand, said police forensics director Paul Ludik.

With a diameter of 14 inches (35.56 cm), the ball has a rough surface and appears to consist of "two halves welded together".

It was made of a "metal alloy known to man" and weighed 13 pounds (5.90 kg).

（點擊英國《每日電訊報》查看原文）

不明“天外客”墜納米比亞

?????? 據英國《每日電訊報》報道，一個巨大的金屬球體從太空墜下，落在納米比亞一處偏僻的草原中，該國當局因此向美國宇航局和歐洲宇航局尋求幫助。

?????? 該空心球體周長43英寸（109.22厘米），在首都溫得和克以北480英里（768公里）處的一個小村莊附近被人發(fā)現。

?????? 警方證據科總長保羅?盧迪克說，（墜落）之前的幾天，當地人就聽到了幾聲爆炸。

?????? 鐵球直徑14英尺(35.56厘米)，表面粗糙，看起來是由“兩個半球焊接而成”。

?????? 它是由“人類所知的合金”制成，重13磅（5.90千克）。

(China.org.cn December 27, 2011)