Yet spending on ads carried over cell-phone networks last year amounted to just $1.5 billion worldwide, a fraction of the $424 billion global ad market.

然而，去年全球手机网络广告支出仅为15亿美元，仅占全球广告市场总额4240亿美元的一小部分。

youdao

This nearly incomprehensible state is theorized to have existed for just a fraction of the first second of time.

理论预言，这个几乎无法理解的状态只存在了宇宙第一秒钟的极小一段时间。

youdao

But the scans also find it hard to detect weakly selected genes, so they may be picking up just a small fraction of the recent stresses on the genome.

但扫描也很难发现被选程度很弱的基因，所以它们可能只是偶然获得近期基因组身上压力的很小一部分。

youdao

You don't want to just ignore it, but in cases like that, it's usually a small fraction of the total.

你不能直接把它忽略掉,但在像这样的情形下，它一般是。

麻省理工公开课 - 热力学与动力学课程节选

The price of fuel, oxygen and the like for a launch currently amounts to just a fraction of 1% of its overall cost, he said.

CNN: Elon Musk: Our future in space depends on reusable rockets

These AMs are old hands at fighting election campaigns, remember, and they know how much it costs to reach just a fraction of the population, let alone all.

BBC: Real life and law making collide

Some of Wal-Mart's new supercentres, which can range up to 220, 000 square feet in size, are now being designed to be just a fraction smaller than the 100, 000 square-foot limits on retail units that have been imposed in some parts of America.

ECONOMIST: Wal-Mart