新体系仍处于规划阶段。The new system is still in the planning stages.石油工程师规划并管理石油的提炼。Petroleum engineers plan and manage the extraction of oil.整个方案的规划极为精细。This whole plan has been most carefully mapped out....
There the incidence of the cancer of the esophagus was suspected to be pretty high.估计那里的食道癌发病率相当高。Horse 's narrow esophagus results in repeated choke.马的食道狭窄，常常引起食道阻塞。Peristalsis in the body of the esophagus is under...