The petrel came winnowing in from afar on the sea.海燕从遥远的地方振翼飞来.He's a stormy petrel.他是个坏星宿.black petrel黑叉尾海燕Sinclair Lewis was stormy petrel in his life as in his books.辛克莱·刘易斯在他的生活中也像他的书中一样是个制造麻烦的人....
Bibliographies are lists of books and are compiled in many different forms.书目是以许多不同形式编制的图书目录.The sources have been indicated in the bibliographies of the various chapters.每章中的参考书目指出资料来源.This type of annotation may be ext...
The workpiece is already on the lathe.工件已经上了车床.We used grinding machines only to smooth and finish a workpiece.我们只是用磨床将工件抛光和精加工.The carriage feeds the tool while the workpiece rotates.当工件旋转时,拖板送进刀具....