A digraph D is unilateral.有向图D是单连的.We shall abbreviate'directed graph'to digraph.我们将把“有方向的图”简称为方向图.There fore we study the kings of locally semicomplete digraph by its characterization.文章通过研究局部半完全有向图的结构定理,分类讨论了...
他在第32分钟时因故意手球犯规被罚下场。He got sent off for deliberate handball in the 32nd minute.因手球犯规而罚点球a penalty for handball不过她的反手球的确有了进步.Her backhand, however, had definitely improved....
Oral fibrosis can cause betel nut chewing and mouth.吃槟榔会导致口腔纤维化,口腔癌.Many teenage girls thought selling betel nuts a gravy train.许多少女认为卖槟榔是一项薪水高、工作轻松的职业.I like to eat cold betel peppers in sauce very much.我特别喜欢吃凉拌蒟蒻....