/,ʌp'greɪd; ,ʌp`ˇred/
v [Tn, Tn.pr] ~ sb/sth (to sb/sth) raise sb/sth to a higher grade or rank 提高某人[某事物]的级别或等级
*She was upgraded to (the post of) sales director. 她已提升为销售部主任.
* The consulate was upgraded to embassy status. 该领事馆已升格为大使馆. Cf 参看 downgrade.

/'ʌpgreɪd; `ʌp,ˇred/
n (US) upward slope 向上的斜坡.

v
[I and T]
to make a computer, machine, or piece of software better and able to do more things
upgrade (sth) to sth
　You'll need to upgrade your hard drive to 4Mb before running this software.
[T]
to improve something and make it more modern, especially in order to provide a better service
　The hotel has recently been refurbished and upgraded.
[I and T]
to give someone a better seat on a plane or a better room in a hotel than the one they paid for
upgrade (sb) to sth
　We can upgrade you to business class.
[T]
to give someone a more important job
[T]
to change the official description of something to make it seem better or more important
≠ downgradeupgrade sth to sth
　Four of the regions were upgraded to the status of republic.
upgrade your skills
to learn new and more modern ways of doing a particular job
>upgrade ['ʌpgreɪd/