因此，我们的身体不断地把旧物质替换成新的，就像一个喷泉，或多或少地保持着它的形式和运动，但其中的水分子总是不同的。
Thus our bodies continuously exchange old substance for new, just like a spring which more or less maintains its form and movement, but in which the water molecules are always different.
矿物质、藻类和蓝菌为内华达州黑岩沙漠的间歇喷泉披上华美绚丽的外衣。
Minerals, algae, and cyanobacteria give this geyser in Nevada's Black Rock Desert its brilliant colors.
矿物质、藻类和蓝菌为内华达州黑岩沙漠的间歇喷泉披上华美绚丽的外衣。
Minerals, algae, and cyanobacteria give this geyser in Nevada's Black Rock Desert its brilliant colors.
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