They keep in touch with their members by issuing a quarterly newsletter.他们印发内部季刊与会员保持联系.We must keep in touch with each other.大家要经常通气.We must keep in touch with what is happening in foreign countries.我们必须了解国外的动态....
Mr Foley was down and out after he lost many friends.佛利先生失去许多朋友之后,穷困潦倒.Objective : To discuss occulation of pulmonary artery blood flow with Foley catheter in open cardiac surgery.目的: 探讨在心内直视手术中以Foley氏尿管阻断动脉导管血流,缝闭动脉导管的方...