Every day a different name was placed at the head of the chart.每天都有一个不同的名字被列在这张表的最上端。We are keeping our head above water, but our cash flow position is not too good.我们正努力避免陷入困境，但我们的现金流动情况不太好。He cracked his head on the pa...
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...
He goes to the podiatrist to have his bunions treated.他到足病医生那里去治他的拇囊肿。There are records of the King of France employing a podiatrist, as did Napoleon.有记载称,法国皇帝们曾经雇用足科医师, 例如拿破仑....