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TOEFL BNC: 6186 COCA: 5927

upgrade

2 ENTRIES FOUND:
1 upgrade /ˌʌpˈgreɪd/ verb
upgrades; upgraded; upgrading
1 upgrade
/ˌʌpˈgreɪd/
verb
upgrades; upgraded; upgrading
Learner's definition of UPGRADE
[+ object] : to make (something) better by including the most recent information or improvements升级,提升,改善(某事物)
[no object] : to choose to have or use something more modern, useful, etc.进行更新;进行升级often + to
: to get something (such as a seat on an airplane or a room in a hotel) that is better than what you had originally升级(机舱座位、旅馆房间等);提高待遇often + to
[no object]
[+ object]
[+ object] : to give (someone or something) a higher rank or grade晋升:升级often + to
opposite downgrade

— upgradable

or upgradeable /ˌʌpˈgreɪdəbəl/ adjective
2 upgrade /ˈʌpˌgreɪd/ noun
plural upgrades
2 upgrade
/ˈʌpˌgreɪd/
noun
plural upgrades
Learner's definition of UPGRADE
[count]
: an area or surface that goes upward : an upward slope上坡
: an occurrence in which one thing is replaced by something better, newer, more valuable, etc.改善;升级;提高档次

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