Sir Peter has held several senior military posts.彼得爵士担任过几个高级军事职务。You have to get eight wooden posts, and drive them into the ground...你得找来8根木桩，并把它们敲入地里。...one of the plushest posts in US diplomacy.美国外交界待遇最优厚的职位之一The post...
' steel in this class is tough, ductile and easily machined. "这种钢强韧, 延展性好,而且容易加工.Shrinkage and dispersed shrinkage are the special waster of ductile iron.缩孔和缩松是球墨铸铁特有的废品现象.The metal is very hard and strong and less ...