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1·His brother, Asen, also used to play in Bulgaria.

他的兄弟阿森也曾在保加利亚踢球。

2·The construction of Sino-ASEN Free Trade Zone has already entered the implementation stage, facing many legal matters.

中国-东盟自由贸易区的建设已进入了实施阶段，面临诸多法律问题。