马的食道狭窄，常常引起食道阻塞。Horse 's narrow esophagus results in repeated choke.食道的后端是嗉囊.At the posterior end of the oesophagus is the crop.食道狭窄可由斑痕组织或压迫所引起.Stenosis may be caused by cicatricial tissue or by compression....
Proctitis is common in patients undergoing pelvic radiation therapy.直肠炎常见于骨盆放射治疗的病人.On the pelvic surface of the sacrum are four slight ridges.在骶骨的骨盆里有四个小的脊.Both pelvic and thoracic sling restraints are used.用吊带约束髋部和胸部....
A Delta II rocket was launched from Cape Canaveral early this morning.今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。They're freshly baked. I fetched them from the baker's this morning.它们是刚出炉的。我早上去面包房买回来的。I managed to get all the...