To survive, the star's expansion driven by the explosion must neutralize the compression driven by its gravity.

恒星若想要存活下去，则由爆炸引起的膨胀必须抵消由重力引起的坍缩。

Without dark matter, the rapid expansion driven by dark energy could prevent galaxies from forming at all.

如果没有暗物质，暗能量驱动的快速膨胀可能会根本阻止星系的形成。