He dressed well and had impeccable manners.他衣冠楚楚,待人接物无可挑剔。He has an impeccable sense of timing.他有着无可挑剔的节奏感。She had an impeccable aristocratic pedigree.她有纯正的贵族血统。...
Objective To investigate the effect calcitonin gene - related peptide ( CGRP ) 、 endothelin ( ET ) on duodenal ulcer ( DU ).目的:探讨降钙素基因相关肽 ( CGRP ) 、内皮素 ( ET ) 与十二指肠溃疡 ( DU ) 的关系.The last thing I thought about was the Cir...