Traditionally, a hundred samples would take lab technicians more than two days to examine, but for a rat it takes less than 20 minutes.

通常，一百个样本要花费实验技术员超过两天的时间来检测，但是一只老鼠只需要花费不到二十分钟。

youdao

The build is usually fast (less than 20 seconds) to run.

构建通常运行得很快(少于20秒)。

youdao

Next, consider the opposite: documents with less than 20 pages.

接下来，考虑相反的情况：少于20页的文档。

youdao

Last week's meeting in Pittsburgh,Pennsylvania, was the third Group of 20 summit in less than a year.

VOA: special.2009.10.02

That argument's much less compelling nowadays than I think it would have been 20 or 40 years ago.

这个论点在今天远不及在20年前,或40年前有说服力了

耶鲁公开课 - 死亡课程节选

The European Union's announcement comes less than a week after G-20 leaders pledged to increase assistance to developing countries through the International Monetary Fund.

VOA: standard.2009.04.09

Ross almost surely paid less than 20 percent of his total income in taxes.

FORBES: A 102% Tax Rate? Really?

But statistics for public-company carriers cover less than 20 percent of the industry, Perry said.

FORBES: Trucking industry sales revving

Only a handful of companies, probably less than 20 software firms, have ever hit this milestone.

FORBES: Red Hat At $1 Billion