While Britain ran its inflationary policies during the 1920's, it was losing gold to other countries, mainly the United States.

正当不列颠在整个二十年代期间实施通货膨胀性政策时，其货币所含的黄金价值在对比其他国家的货币，主要是在对比美国货币时不断下降。

youdao

The missiles were mainly targeted at the United States.

导弹主要瞄准的是美国。

《牛津词典》

In the United States, people mainly eat meat from cows, chickens, and pigs.

在美国，人们主要吃牛肉、鸡肉和猪肉。

youdao

Nearly half of the farmland in the United States is planted with crops that have been genetically engineered, mainly maize,soybeans and cotton.

VOA: standard.2010.04.15

"I am from Turkey and right now I am attending Ferris State University and I decided to come to the United States mainly because I have been playing competitive Tennis for a very long time and my Tennis coaches mentioned to me that in the United States I would be able to get a scholarship and also get an education so that is the main reason I came to the United States so I can play really competitive Tennis and get my education."

VOA: standard.2009.12.14

As a result, the country has haemorrhaged scientists for decades, mainly to the United States and Europe, but also to Brazil, whose rulers, even in its own years of military rule, took a kinder view of their work.

ECONOMIST: Argentina

The U.S.-EU open skies agreement, while mainly favoring the United States, will benefit the EU generally, though it will mean greater competition for UK carriers.

FORBES: Magazine Article

That is mainly because the United States and Europe see ethanol as an agricultural commodity and protect their own producers (mainly of corn ethanol).

ECONOMIST: Energy in Brazil