洗衣机: washer, washing machine...
力求: to make every effort to, striving to do one's best...
票价: ticket price, fare, admission fee...
追溯: to go upstream, to trace sth back to, to date from...
指南: to guide, guidebook...
出去: to go out...
预防: to prevent, to take precautions against, to protect, to guard against, precautionary, prophylactic...
动物园: zoo...
核电站: nuclear power plant...
政策: policy...