稚气的

They only had what passed for self-awareness, cloaking a flightiness and lethargy that was both childish and very real.

们仅仅拥有所谓“自我意识”，并以此掩饰着自身既稚气但又极其真实肤浅和懒散。

It is thus that, athwart the cloud which formed about him, when all his hopes were extinguished one after the other, M.Mabeuf remained rather puerilely, but profoundly serene.

马白夫先生便是，在处境日益黯、希望一一消失下心境却仍然宁静如初，虽然带点稚气，但很固执。