Turkey and Greece were buffer states against the former Soviet Union.

土耳其和希腊是反苏国家与前苏联之间的缓冲国。

In 1957 the Soviet Union launched the first satellite to orbit the earth.

1957年，苏联发射了第一颗环绕地球运行的人造卫星。

Gorbachev failed to keep the component parts of the Soviet Union together.

戈尔巴乔夫没能使苏联各组成部分保持在一起。

Stalin was the unquestioned ruler of the Soviet Union from the late 1920s until his death in 1953.

斯大林是从20年代末到1953年他去世苏维埃政权无可争议的领导者。

The old Soviet Union is a vivid example.

前苏联就是一个绝好的例证。