She traced a line in the sand.

她在沙地上画了一条线。

《牛津词典》

There is not a dull line in the whole article.

整篇文章中没有一行是乏味的。

《新英汉大辞典》

youdao

It is a line drawing made out of aluminum wire that looks like a wavy net floating in mid-air.

VOA: special.2009.05.06

The wonderful line he has in his last prose-fiction "Worstward Ho", Try again, fail again, fail better.

在他最后一部散文小说《向西去啊》有一句，再尝试，再失败，却更好地失败。

普林斯顿公开课 - 人性课程节选

Said a different way, in the case of the straight-line programs, how long would it take to run a program?

换种说法，在直线式程序里面，运行一个程序要多长时间？

麻省理工公开课 - 计算机科学及编程导论课程节选

You may also play music from any audio device through the universal 3.5mm aux line-in jack.

ENGADGET: iHome intros iDM5 Executive workstation for tablets / smartphones, priced at $130

"Although this incident might seem very small in isolation, this is a line-in-the-sand moment for us, " Arthur told reporters.

WSJ: Aussie Wrangling Raises a Laugh

The downsides of no line-in and a higher pricetag than the comparable E-P1 aren't insignificant, but the GF1 will certainly put up a fight.

ENGADGET: Panasonic Lumix DMC-GF1 hands-on, with 720p test footage!