How can you make a line shorter without erasing any part of it?

你怎样才能在不擦去任何一部分的情况下使一条线变短？

youdao

All I could make out was a long, jagged line with some high plateaus.

我能看到的只有一条参差不齐的长线条，其中还有一些高的凸起。

youdao

If we don't make a profit, my job is on the line.

我们要是赚不了钱，我就有失业的危险。

《牛津词典》

In the Mexican state of Michoacn potters make white clay containers painted with line drawings of fish and other animals.

VOA: special.2009.09.09

Ok, double line. If there are no questions I'm going to make a dramatic change in topic.

好的，这是重点，如果没什么问题,我要讲下面的内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

Yeah, I think I'll make that clear line, meaning the... like again, Israeli politics doesn't really, in that case doesn't really break down religiously.

是，我来说清楚，我的意思是。,以色列的政治也不会，因为宗教原因而崩溃。

普林斯顿公开课 - 人性课程节选

The company also has plans to make a line of tablet based thin clients.

FORBES: HP's Earnings: Restructuring And Weak PC Market Will Be A Drag

The South African charged down Tipoki's attempted clearance kick and did well to make the line for a debut try.

BBC: Munster 36-13 Clermont Auvergne

Fly-half Jones levelled after 18 minutes with a penalty, but six minutes later Humphreys capitalised on poor defence, using his pace to make the line untouched.

BBC: Scarlets 16-16 Ulster