The United States petroleum industry's cost to meet environmental regulations is projected at ten percent of the price per barrel of refined petroleum by the end of the decade.
在这十年结束之前，美国石油工业达到环保标准的成本预计为每桶精炼石油价格的10%。
2
The treaty provides that, by the end of the century, the United States must have removed its bases.
这项条约规定，到本世纪末，美国必须撤走其基地。
《柯林斯英汉双解大词典》
3
The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq.