把钱包、皮夹和其他贵重物品放在看不见的地方。
其他天文学家已经看到了银河中心附近快速移动的星和气体云，因此Ghez和Genzel都怀疑一团致密的物质正藏在看不见的地方。
Other astronomers had seen fast-moving stars and clouds of gas near the center of the Milky Way, so both Ghez and Genzel suspected a dense cluster of matter was hidden from view.
其他天文学家已经看到了银河中心附近快速移动的星和气体云，因此Ghez和Genzel都怀疑一团致密的物质正藏在看不见的地方。
Other astronomers had seen fast-moving stars and clouds of gas near the center of the Milky Way, so both Ghez and Genzel suspected a dense cluster of matter was hidden from view.
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