Not only does he keep body and soul together, but he is on good terms with his wife.

keep 的意思是"保持、维持"。 body 指"身体"。 and 是连词，表示"和"。 soul 指"灵魂"。 keep body and soul together 是一个固定短语，字面意思是"让身体和灵魂保持在一起"，引申为"维持生计"或"勉强糊口"的意思。