Some speculation exists that quasars are actually white holes instead of supermassive black holes.

一些人推测存在的类星体实际上是白洞而不是超大质量的黑洞。

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White holes have never been observed, though general relativity predicts they could exist in principle.

人们从未观测到过白洞，然而广义相对论认为白洞原则上是存在的。

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Obama returned to the White House at two o 'clock after playing nine holes of golf at Andrews Air Force Base.

在安德鲁斯空军基地打了九洞高尔夫之后，2点钟的时候奥巴马返回了白宫。

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No censorship." Looted businesses in Kyrgyzstan attest to lawless citizens just as high-caliber bullet holes in the fence surrounding the Kyrgyz White House attest to lawless government.

VOA: standard.2010.04.15

Scores of towering white oaks line the holes near the creek bottom.

WSJ: Sand-Greens Golf: A Game Lives On in the Great Plains

Television pictures showed Mr. Zulfikar's white Toyota Corolla car with bullet holes in its windshield.

WSJ: Prosecutor in Musharraf Case Killed

These enormous emissions of energy occur when black holes, neutron stars or white dwarfs collide - the galactic mergers take just seconds, but they send out a vast wave of radiation.

BBC: Gamma-ray burst 'hit Earth in 8th Century'