回肠胆结石梗阻可引起各种明显的临床征象.Obstruction of the ileum by stone leads to distinct clinical pictures.回盲部和末端回肠常呈扩张面而不狭窄.The ileocecal valve and terminal ileum are usually dilated rather than stenosed.末端回肠充满坚硬细小的灰色结石.The terminal ile...
这些工作组将按惯例工作。These working parties will be going over well-trodden ground.按惯例，这一领导职务的副职总是由女性担任。By convention the deputy leader was always a woman.他们按惯例前往墓地悼念死者。They made their way to a graveyard to pay their traditional r...
A yawning North-South gulf has opened up with both sides digging in.双方都坚持自己的立场，南北之间出现了一条鸿沟。Yawning is often contagious.打哈欠常易于感染.I felt so sleepy I couldn't stop yawning.我感到很困,止不住地打呵欠....
Definitive determination of the benefit of angiotensin - converting angiotensin - receptor blockade.而血管紧张素转化酶抑制剂疗法获益的确切结果则需要像血管紧张素受体拮抗剂一样的确定性临床试验研究.In the renin - angiotensin - aldosterone system, the juxtaglomerular app...