【化；理】to concentrate

【建】to enrich

【矿】thickening

喻指去除次要的提取主要的to distill

• 教材经过“浓缩”，内容难免偏深偏重。

  After teaching materials have been "distilled", it is difficult to avoid their content becoming rather deep and dense.

• 我们试图把百年世界风云浓缩在本世纪最后一期《国际周刊》里，奉献给亲爱的读者。

  We have attempted to distill a century of political upheavals into the final issue of International Weekly this century and present the result to our dear readers.