The quantities of goods exchanged between two countries depend on complex forces.

两国之间交换商品的数量多少，是由许多复杂原因决定的。

youdao

For more than two weeks this month, I commuted between two countries each day.

本月，我在两座城市间往返通勤了两个多星期。

youdao

The past few years in particular have witnessed active and fruitful interactions between two countries.

特别是过去几年，中印关系取得了积极和丰硕的成果。

youdao

With the coming of Mexican independence, the Santa Fe Trail became the major trade link between the two countries.

VOA: special.2009.03.30

Quickly, India and Pakistan, ? How do they get along? Has the prospects for war between the two countries we see is in the background? -Probably yes.

印度和巴基斯坦，它们的关系怎么样,这两个国家间潜在的战争,可能爆发吗？，-也许吧。

普林斯顿公开课 - 国际座谈会课程节选

It represented the alliance between their two countries during America's war for independence from Britain.

VOA: special.2010.05.06

"The level of co-operation between two countries has been good, " the official added.

CNN: BP fears 'the worst' for missing Algeria workers

The president defended his comments to Mr. Medvedev, saying "arms control is extraordinarily complex" and requires deep consultation between two countries.

WSJ: Obama Appeal to Russia Caught Live

Neither country is accustomed to, let alone comfortable with, an international system whose functionality rides in large measure on cooperation between two countries.

FORBES: China May Not Be A U.S. Ally, But It's Also Not An Adversary