他不得不走遍全国寻找工作。He has had to travel the country in search of work.我们走遍了西班牙的城镇和村庄。We visited towns and villages all over Spain.他们为了探寻铀矿走遍了全国.They went over nationwide in search of uranium mines....
科学家已证实胆固醇含量与心脏病之间有关联。Scientists have established a connection between cholesterol levels and heart disease.警方怀疑那两桩凶杀案可能有关联。Police suspect there may be a link between the two murders.物理学与天文学是互有关联的科学.Physics and astronomy ...