太平洋底现巨型金字塔，疑似外星人基地
Humans have yet to explore the deep wonders of the sea, but a recent find suggests aliens may have already beaten us to it.
Deep below the Pacific Ocean lies what one Martian researcher has taken as “a perfect pyramid”. Using Google Earth, this big structure appears to be 8.5 miles across and some say it could be a UFO parked underwater or a large alien base.
Marcelo Igazusta, a researcher in Argentina, was the first to lay eyes on the mysterious underwater structure, which was discovered last month. Using the coordinates 12°8'1.49 'N 119°35'26.39' W, Igazusta claims to have seen a beam of light shining from the darkness of the Pacific Ocean just west of Mexico—leading him to this discovery.
Well-known alien hunter, Scott C Waring, picked up the discovery today and shared it with his followers. “It’s a perfect pyramid that measures 8.5 miles across one side of its base,” Waring writes in his blog UFO Sightings Daily. “That's an underestimate. It could be up to 11 miles across.” Waring explains that this “perfect pyramid” is close to the ancient Mayan and Aztec pyramids in Mexico.
Although the ancient pyramids were built by humans, Waring says only aliens could make such a big structure, referring to the one underwater. “Even if this is not a UFO that landed in the ocean that was being used as an alien base, it is still an important discovery,” he writes. “An 8.5 mile pyramid... biggest the world has ever known.”
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1. What does the underlined word “underestimate” mean in Chinese? （词义猜测）
A 精算.
B 预估.
C 高估.
D 低估.
