1. V-T If you condense something, especially a piece of writing or a speech, you make it shorter, usually by including only the most important parts. 簡縮 (尤指文章、演講稿)

When you summarize, you condense an extended idea or argument into a sentence or more in your own words. 總結(jié)的時候，用自己的話把拓展了的觀念或論據(jù)簡縮成一句或幾句話。

2. V-T/V-I When a gas or vapour condenses, or is condensed, it changes into a liquid. (氣體、蒸汽) 冷凝

Water vapour condenses to form clouds. 水蒸汽冷凝形成云。