榜样: example, model...
义务: duty, obligation, volunteer (work etc)...
合同: (business) contract...
区: area, region, district, small, distinguish...
受到: to receive (praise, an education, punishment etc), to be...ed (praised, educated, punished etc)...
次日: next day, the morrow...
测验: test, to test...
通用: to use anywhere, anytime (card, ticket etc), to be used by everyone (language, textbook etc), (of two or more things) interchangeable...
校园: campus...
