In an experiment, a researcher will place nuts into a can one at a time and then remove them one by one.

在一项实验中，研究人员每次把坚果放入一个罐子，然后再一个接一个地把它们取出来。

youdao

We've now got an extra photocopier, so as well as the one upstairs, there's one down here.

我们现在多了一台影印机，所以除了楼上的那台，楼下也有一台。

youdao

On the one hand, a house will be too big for just one person, so maybe I should rent an apartment.

一方面，一个人住一个房子会太大了，所以我或许应该租一间公寓来住。

youdao

An invitation to one of her parties was almost as valuable as an invitation to dinner at the White House.

VOA: special.2009.04.26

We've added an extra one at 11:00, an extra one at 2:00, and we've added one at 1:00.

我们在11点钟加了课，还有2点和1点。

麻省理工公开课 - 固态化学导论课程节选

It's about maybe half an hour, one hour from Barbados and maybe another hour and half from Puerto Rico.

从巴巴多斯岛到那儿大概要半小时或一小时；从波多黎各到那儿则需要再花上一个半小时。

和纽约的留学生 - SpeakingMax英语口语达人

We're going to take one question each, one from an American journalist and one from an Indian journalist.

WHITEHOUSE: President Obama and Prime Minister Singh Press Conference

Other things being equal, a company with an overfunded pension plan is more valuable than one with an underfunded one.

FORBES: 2004 Mutual Fund Survey

Yet the decision to fire a coach is usually an emotional one and the decision to hire a new one is also more often than not an emotional one born from by a desire to win the press conference announcing that hire.

FORBES: The Coaching Carousel