恒星聚缩时甚至继续升温，这个过程燃尽了残存的氢，并导致恒星外层向外膨胀。
As the star condenses and compacts it heats up even further, burning the last of its hydrogen and causing the star's outer layers to expand outward.
恒星聚缩时甚至继续升温，这个过程燃尽了残存的氢，并导致恒星外层向外膨胀。
As the star condenses and compacts it heats up even further, burning the last of its hydrogen and causing the star's outer layers to expand outward.
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