冲突: conflict, to conflict, clash of opposing forces, collision (of interests), contention...
年度: year (e.g. school year, fiscal year), annual...
近来: recently, lately...
步: a step, a pace, walk, march, stages in a process, situation...
公立: public (e.g. school, hospital)...
学校: school...
伸手: to reach out with one's hand, to hold out a hand, to beg, to get involved, to meddle...
空前绝后: unprecedented and never to be duplicated, the first and the last, unmatched, unique...
气温: air temperature...
公约: convention (i.e. international agreement)...