Given the limited utility then, the U. S. and its Allies must now decide if all the trouble involved in setting up a zone — including inevitable questions of legality — are worth the risk.

考虑到有限的效用，美国和他的盟友们现在必须要决定所有建立禁飞区涉及到的麻烦—包括合法性问题的持续争论—是否值得去冒险。

youdao

The zone was tested on Feb. 28, 1994, when six Serbian fighter planes were shot down by U. S. Air Force F-16s, in what became known as the Banja Luka incident.

1994年2月28日该禁飞区进行了试验，6架塞尔维亚战斗机被美国空军f - 16战机击落，也就是后来大家所知道的巴尼亚·鲁卡事件。

youdao

While the yuan is gradually gaining confidence, it is hard to back away from the comfort zone of the U. S. dollar.

在人民币获得信心的同时，它与美元的汇率将很难再回到合理区域。

youdao

China has also been angered by U.S.Naval operations inside its 320-kilometer economic zone, leading to some confrontations between American and Chinese ships.

VOA: standard.2009.10.27

U.N.Emergency Relief Coordinator John Holmes visited the conflict zone,Friday, during a three-day visit to Yemen, inspecting one of five refugee camps in the north of the country.

VOA: standard.2009.10.11

In Europe, shares of big manufacturing companies and miners declined on weak euro-zone and U.S. data.

WSJ: Euro Worries Persist Even as Yields Ease

Sluggish economic growth in the U.S. and euro-zone debt problems have been factors holding back the investment appetite of Western companies.

WSJ: China Sees Drop in Property Prices

The news sparked riots in Japan, and President Theodore Roosevelt scrambled to make what was called the "Gentleman's Agreement" by which the Japanese government agreed to stop immigration to the U.S. In 1917 India was added to the "Pacific-Barred Zone" from which no immigrants to the U.S. were allowed, and from 1924 until 1965 Asian immigration into the United States was essentially banned.

WSJ: America's New Tiger Immigrants: Asians in the U.S.