南辕北辙: to act in a way that defeats one's purpose (idiom)...
实在: really, actually, indeed, true, real, honest, dependable, (philosophy) reality...
工作: to work, (of a machine) to operate, job, work, task...
界: boundary, scope, extent, circles, group, kingdom (taxonomy)...
间谍: spy...
透彻: penetrating, thorough, incisive...
…极了: extremely; exceedingly...
背: carry on one's back, to be burdened, to carry on the back or shoulder, learn by heart, the back of the body...
详尽: thorough and detailed, exhaustive, the tedious details in full...
属: to join together, to fix one's attention on, to concentrate on...