“这更像职业危害而不是环境危害”他说，“矿工被岩石包围着，还要涉过释放氡的地方积水”。
"It's more of an occupational hazard than a general environmental hazard, " he says. "The miners are surrounded by rocks and sloshing through ground water that is exuding radon."
银河系漩涡展开过程中某些区域的星群之气体尘埃在引力作用下，形成由岩石物质和气体包围的小行星。
A region of gas and dust from exploding stars in the Milky Way galaxy starts to collapse under its own gravity, forming a small star surrounded by a disk of rocky material and gas.
他们发现自己被彩色的岩石、鱼、贝壳和植物所包围。
They found themselves surrounded by colorful rocks, fishes, shells and plants.
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