Randolph's work was exclusively concerned with the effects of pollution on health.伦道夫的著作专门论述污染对健康的影响。...the articles that formed the basis of Randolph's book...构成伦道夫此书的基础的那些文章After a three-weekend courtship, Pa...
In working with others, you find out more about yourself.在与别人一起工作的过程中，你会进一步认识你自己。An investigation is underway to find out how the disaster happened.调查已经展开，以查明灾难是如何发生的。Would you call me as soon as you find out?你一弄清楚了就给我打电...
She stood up and began to pace to and fro.她站起身，开始来回踱步。The boat was rocking gently to and fro in the water.小船在水中轻轻地来回摇荡。They travel to and fro between London and Paris.他们奔走于伦敦和巴黎之间....