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| be deeply involved with (caught up in something and caught up with something deeply involved with something; participating actively or closely in something. Wallace is caught up in his work and has little time for his son, Buxton. See also: caught, up McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. й 2002 Alexander Demidov) | |||
| work closely together (ART Vancouver) | |||
| have worked closely with (CNN Alex_Odeychuk) | |||