1.
Nicknames may only contain letters, numbers, dashes and underscores.
昵称只能包含字母、数字、短划线和下划线。
2.
Dots or dashes in a row leading the eye across a page, as in an index entry.
指引线引导视线掠过书页的成排点或短划线，如在索引词条中
3.
Solid;Dashes;Short Dashes;Dots;Sparse Dots;Dash Dot;Dash Dot Dot
实线;虚线;短虚线;点线;稀点线;点划线;点点划线
4.
Transparent;Solid;Dashes;Short Dashes;Dots;Sparse Dots;Dash Dot;Dash Dot Dot
透明;实线;虚线;短虚线;点线;稀疏点线;点划线;点点划线
5.
3a Read the article and underline all the phrasal verbs.
读短文并且在所有的动词短语下面划线。
6.
See if you can find the opposite for each word below.
从短文中找出下列划线单词的反义词。
7.
There are dozens of words and phrases underlined.
有许多单词和短语的下面划了线。
8.
The study of shortest path in logistics and route plan;
物流配送路线规划中的最短路径研究
9.
Many books of them had filled with words and phrases underlined .
其中很多书都写满了批注和下面划了线的短语。
10.
Modules should have short, lowercase names, without underscores.
模块应该是不含下划线的,简短的,小写的名字.
11.
En dash (En rule): A rule the length of which equals an en. Used to take the place of hyphen in many occasions when finer typography is required.
半方接线（短划）:长度等于半方的短划。很多时，配合精细的排字要求，就用它来代替连字号。
12.
However, she does not know what words to use to replace the underlined phrases below.
可是她不知道使用什么单词来替换下面的划线短语。
13.
In printing, the short strokes projecting from the principal lines of printed characters.
在印刷技术中,从印出字符的主线中投射出来的短划。
14.
visit the Great Wall
五、阅读下面的小短文，通过上下文猜出划线生词的中文意思；
15.
Many book of them had filled with words and phrases underlined.
其中很多书都写满了批注，还有许多单词和短语的下面划了线。
16.
The main contents of this course include linear programming, simplex arithmetic.
线性规划、单纯形法、西北角法、最大优化法，最短距离法。
17.
a short stick, line, dress, journey
短棒、 短线、 短连衣裙、 短途旅行
18.
Serif: The short cross -lines at the beginning and end of the main strokes of certain type faces. Originally, it is the beginning or finishing strokes of the pen.
衬线:在一些印刷字体的主要笔划两端的短横线。它本来是书写的起笔或收笔的笔势。