line, 把point串起来

point可以是一个人、一件事、一个地点、一个时刻、一种观点…；

串起来以后，就成了各种line，各种线。

Examples：

Light travels in a straight line . 光沿直线传播。

He quoted a few lines from Shakespeare. 他引用了莎士比亚的一些诗句。

The school takes a very tough line on drugs. 该学校在毒品问题上采取非常强硬的态度。

We were both thinking along the same lines. 我们俩想法相同。

They finally broke through the German line. 他们终于突破了德军防线。