正: straight, upright, proper, main, principal, to correct, to rectify, exactly, just (at that time), right (in that place), (math.) positive...
墨: ink stick, China ink, corporal punishment consisting of tattooing characters on the victim's forehead...
陆地: dry land (as opposed to the sea)...
人间: the human world, the earth...
爱护: to cherish, to treasure, to take care of, to love and protect...
车库: garage...
课题: task, problem, issue...
人民币: Renminbi (RMB), Chinese Yuan (CNY)...