This happened twice because he had to sample two different kinds of spaghetti.

这个发生了两次，因为他要试两种不同的意大利面。

youdao

This time they let people sample two kinds of candies - peanut butter bars and caramels - and varied the sticker prices for each one.

在这次实验中，他们让人们在饴糖和花生黄油棒棒糖两种价格不一的糖中做出选择。

youdao

The survey used a random sample of two thousand people across the Midwest.

这项调查使用的是对中西部地区2000人的随机取样。

《柯林斯英汉双解大词典》

The guest list for the dinner provided a sample. Among those seated in the State Dining Room were the first two Muslims elected to the U.S.Congress Keith Ellison and Andre Carson.

VOA: standard.2009.09.02

Covariance is--we'll call it--now we have two random variables, so cov... I'll just talk about it in a sample term.

协方差是...我们有两个随机变量,x和y的协方差是,从样本的角度来说

耶鲁公开课 - 金融市场课程节选

"The post includes a sample two-page spread from an unidentified book to show how this important innovation can be actualized, " Portnoy explains.

WSJ: Best of the Web Today: The Other Obesity Problem

Although two rounds of play is a very small sample two things stand out and are worth watching over the next few rounds of play.

FORBES: Why Fortune May Favor The Brave In CONCACAF World Cup Qualifying

The council's president, Tibisay Lucena, told AFP news agency that the expanded audit was not a recount but would cover all ballot boxes not audited on election day by reviewing a sample two-thirds of them over the next month.

BBC: Nicolas Maduro sworn in as new Venezuelan president