The work spindle get four-grade rotate speed, which is driven by a couple of two-grade v-belt pulley.

由一对两级三角皮带轮传动工件主轴，使其获得四级转速；

youdao

The two of them made a handsome couple.

这对夫妻男俊女靓。

《牛津词典》

A wonderful bond formed between the two, and within a couple of weeks, the stranger named White helped raise $190,000 on the website to support the Memphis teenager and his disabled mother.

两人之间形成了一种奇妙的联系，在几周内，这位名叫怀特的陌生人在网站上帮助筹集了19万美元，以支持这位孟菲斯市的少年和他残疾的母亲。

youdao

Anders Wilhelmson says the sanitation process can take as little as a couple of hours or as long as two to four weeks.

VOA: special.2010.03.15

I thought I would just remember a couple of highlights from the first two lectures to consolidate what we said then.

我想再重申一下,上两节课的几个重点,以便巩固我们讲过的内容。

耶鲁公开课 - 金融市场课程节选

I want to work for a couple of years, maybe two or three years. And then,

我想工作几年，也许两三年。然后，

MBA 的优点 - SpeakingMax英语口语达人

Titanium dioxide suffered because of a price war between a couple of major producers two years ago.

CNN: Money & Investing

She found only a paragraph or two in a couple of speeches, but lots of kowtowing.

FORBES: Message to Business--Stop being Wimps

What with cover charges, and a music surcharge, a couple of beers or two cappuccinos add up to 40 euros.

FORBES: My Leading Indicator Is Art In Venezia