upgrade 的意思
upgrade 的翻译
upgrade
[ˌʌpˈɡreid]
释义：
v. 提升，使升级
例句：
We need to upgrade the status of teachers.
我们需要提升老师的地位。
换一句
So we're going to upgrade you and your friend to first class.
所以我们会将您和您的朋友升等到头等舱.
换一句
Thefts have been on the upgrade.
盗窃案已在增多.
换一句