第一手: first-hand...
脖子: neck...
须知: key information, instructions, it must be borne in mind...
合情合理: reasonable and fair (idiom)...
伪装: to pretend to be (asleep etc), to disguise oneself as, pretense, disguise, (military) to camouflage, camouflage...
经理: manager, director...
沉浸: to soak, to permeate, to immerse...
极: extremely, pole (geography, physics), utmost, top...
配件: component, part, fitting, accessory, replacement part...
忘掉: to forget...
