負担 | A responsibility, usually financial, which is declared by a system. “If a guest falls off the hotel roof, it’s the hotel’s responsibility.” “The parent is responsible for paying for the child’s lunch at boarding school.” |
背負う | An emotional burden, which is NOT part of a pre-arranged system:Taking care of your retarded sister, dealing with your son’s alcoholism, the feeling that you let down everyone on your team. |