head start

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Because it compounds.A tiny head start in access to this information gives you a huge advantage in the stock market.Or in marketing.Or in fundraising.
因为它加速了利益的获取，在股市操作，商业竞争，或者资金筹备的过程中，能够领先一小步获取这些信息会给你带来巨大的优势。
Early prototypes during the inception and elaboration phases helped us confirm these choices and gave us a good head start on training, API familiarization, and development.
在初始和细化阶段的早期原型帮助我们确认了这些技术的选择并给了我们在培训、 API 熟悉和开发上的良好开始。
First, the Republicans will have a head start in closing ranks and marshalling resources, while Clinton and Obama will still be taking lumps out of each other.
首先，共和党可以领先一步结束党内部竞争，团结队伍、整合资源，而克林顿和奥巴马此时将还在内耗。

Jackson says, which gives plant breeders around the world a head start in improving food production.
The other two you know are stuff you can add, and you know where you're adding those things, because the particle has a head start.
另外两项是可加可不加的,而且你也知道这两项是怎么来的,因为质点运动是有起点的
耶鲁公开课 - 基础物理课程节选
OK. So we should be able to figure this out for any orbital that we're discussing, and when we can figure out especially radial nodes, we have a good head start on going ahead and thinking about drawing radial probability distributions.
我们可以将这种方法,用于任何轨道，当我们可以算出有多少个径向节点的时候，我们就为画出径向概率分布,开了个好头。
麻省理工公开课 - 化学原理课程节选

They were a semi-competitor, but had a 6 year head start and deep financial resources.
FORBES: Why Building a Company To Flip Is Recipe For Failure

an advantage that someone has over other people in something such as a competition or race

If you have a head start on other people, you have an advantage over them in something such as a competition or race.