roughly hewn timber frames粗劈成的木架子the rough-hewn features of his face他那饱经沧桑的脸The newly hewn steps were too narrow to tread in comfort.新砌的石级窄窄的,搁不下整脚....
...medieval monasteries hewn out of the rockface.在岩壁上凿出的中世纪修道院...the rock from which the lower chambers and subterranean passageways have been hewn.开凿出下闸室和地下通道的岩石roughly hewn timber frames粗劈成的木架子the rough-hewn features o...
其核酸结构为线状双股DNA, 衣壳为二十面体对称,有囊膜.It has linear double strand DNA, icosahedral - capsid and envelope.八面体和二十面体的三角化效果不错,而且也不难实现.Octahedral and icosahedral tessellations work well and are notvery difficult to implement.球状病毒衣壳采用二...