美 [skrætʃ laɪn]
起跑线：比赛中的起跑线，标志着比赛的开始。
起跳线：跳远比赛中的起跳线，标志着运动员的起跳点。
投掷线：标枪比赛中的投掷线，投掷者不能越过该线。
... start from scratch 从头开始；白手起家；... scratch line n. 起跑线 scratch for oneself [美国口语]关心自身...
起跑线
Will build BBS, everybody goes up in a scratch line , succeeded how many is there?
来搭建BBS，大家在一个起跑线上，成功了的有多少？
If cannot compare competitor early one pace, also should not be defeated to go up in the scratch line at least.
如果不能比竞争者早一步，至少也不应该输在起跑线上。
Standing on scratch line of the new century, Yatong people will obey its enterprise faith "Leading Fasion, Devoting service".
站在新世纪的起跑线上，亚通人将一如既往地恪守“引导潮流、悉心服务”的企业信条。
As an aside, if you ever just have one line of code that you want to execute, one puzzle piece in Scratch terminology, ; you actually don't need the curly braces; you only need the curly braces if you have two or more lines of code that you want to execute if that condition is true.
此外，如果你只有一行代码,需要执行，在Scratch，术语中叫做,一句代码，你就不需要使用花括号了;,如果那个条件成立，你有两行或更多行的代码时需要执行时,你就需要花括号。
计算机科学课程节选 : 哈佛公开课
His early prototype takes a few cues from Boogie Board's line of scratch pads.
It will take no less, and possibly considerably longer, to create a new production line from scratch.
The railway has been rebuilt from scratch by volunteers since 1976 and during 2010 its re-laid Purbeck Line carried more than 210, 000 passengers - the second best performance in its history.