Keywords: upgrade

English [? p'ɡre？ d]

Explanation:

Upgrade (a machine, computer system, etc.). ); Upgrade (facilities, services, etc.); To upgrade (an airplane passenger or a hotel guest); Promote (sb); Raise the status of (sth) (present participle of upgrade)

Phrases:

Industrial upgrading; Upgrading of property; The promotion of wealth

Changes in vocabulary use: universities

(noun)

1.college generally refers to a college or college in a comprehensive university, which can be used as both countable and uncountable nouns.

2. In British English, college can refer to a large middle school, or it can refer to a college building or all the teachers and students of the college.

3.college is often used as an attribute before nouns.