Complex sentence: M.K. stands for "machane keva", Hebrew for "permanent military base", and the words "Mem Qoph 22" sound like "milkud 22", the Hebrew translation for the idiom catch-22.
Split into simpler sentences: M.K. stands for "machane keva", which is Hebrew for "permanent military base". The words "Mem Qoph 22" sound like "milkud 22", the Hebrew translation for the idiom catch-22.