Upgradeability
n. 可升级性；升级功能
🗣️ 情景例句
What's Harry doing tonight?
Harry，今晚做什么？
Please try to estimate the extent of the damage.
请估计一下受损害的程度吧。
Later it crossed the Channel, riding smoothly over the waves, which presented no problem.
后来气垫船跨越英吉利海峡，平稳地在波浪上方行驶，波浪不再产生阻力。