Upgradeability
n. 可升级性；升级功能
🗣️ 情景例句
but it'll take you ten minutes longer.
但会多花你十分钟的时间。
Nature is the glass reflecting truth.
大自然是反应真理的一面镜子。
But even when such refinements are not available, there is plenty to keep you occupied.
即使没有这些消遣条件，也总是有事可做。