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内容简介
Practical Exercises
Unit Ⅰ Space News
Unit Ⅱ Disasters and Accidents
Unit Ⅲ Fighting
Unit Ⅳ Emergency Aid to Bosnia-Herzegovina
Unit Ⅴ Meetings
Unit Ⅵ International Trade
Scripts
Unit Ⅰ Space News
Unit Ⅱ Disasters and Accidents
Unit Ⅲ Fighting
Unit Ⅳ Emergency Aid to Bosnia-Herzegovina
Unit Ⅴ Meetings
Unit Ⅵ International Trade
