It adopts outer pipe co - extrude technology, improving the joint stress among layers.采用的外管共挤技术, 提高了管材的层间结合强度.Relative concentrations of molecular and metallic ions in midlatitude intermediate and sporadic - E layers.在 中...
卢克的妈妈收起了笑容，用责备的眼光看着他。Luke's mother stopped smiling and looked reproachfully at him.她责备的眼神中流露出一种被骗的神情。The accusing look in her eyes conveyed her sense of betrayal.他用责备的目光看着她。He looked at her with reproach....
沃德豪斯的书信选集卖了1,232英镑。A selection of correspondence from P G Wodehouse realised £ 1,232. P.G.她在书信和笔记中几乎从不提及他。She virtually never mentions him in her corre-spondence or notebooks.人们必须以书信方式重新登记机动车辆。People had to renew their m...