The wild card in the picture is eastern Europe.

局势中的未知因素在东欧。

Discussions were centred on developments in Eastern Europe.

讨论围绕着东欧的发展这一中心议题进行。

Physical and ideological barriers had come down in Eastern Europe.

物质和意识形态上的障碍在东欧都已减少。

The West has an interest in promoting democratic forces in Eastern Europe.

西方国家在促使东欧民主力量壮大中有利害关系。

Eastern Europe is rapidly becoming a dumping ground for radioactive residues.

东欧正在迅速变成一个放射性残渣的倾倒场。