warm up

动词verb

1. 1intransitiveTo become warmer.
2. 2transitiveTo heat or reheat (e.g. food).
3. 3intransitive, transitiveTo reach, or cause to reach, a normal operating temperature (of a car for example).
4. 4figurativelyTo physically or mentally prepare oneself, something or someone for an activity.
5. 5intransitive, figurativelySynonym of warm (to favor increasingly). [with to]
6. 6(computing, transitive) Synonym of warm (“prepopulate a cache”).
7. 7(Internet, transitive) Synonym of warm (“send mail from a domain to improve reputation”).