Upgradable
a. 能提到更高一級標準的(=upgradeable)
??? 情景例句
This big house is perfect for our large family.
這坐大房子完全適合我們大家庭居住。
John is really scared of airplanes.
約翰真的很怕乘坐飛機。
We can make the price lower if you would order a bit more.
如果你單子下多一點，我們可以減價。