English pronunciation of “mainline”

mainline

uk How to pronounce mainline adjective in British English
us How to pronounce mainline adjective in American English
uk How to pronounce mainline verb in British English
us How to pronounce mainline verb in American English

(English pronunciations of “mainline” from the Cambridge Advanced Learner’s Dictionary & Thesaurus and from the Cambridge Academic Content Dictionary, both sources © Cambridge University Press)