声音简介： 词根：Press – 压   Impress  v. 留下印象【im + press  -- 在脑海里面压上烙印】                         His speech impressed me deeply. His speech left a deep impression on me.     First impressions are of vital importance It takes maybe just three seconds for someone to form a first impression of you when you meet for the first time.                  Impressive adj. 令人印象深刻的。          *How do you like the movie ?    *It is really impressive.   u  He built a car all by himself. That is truly impressive.       Compress v. 压缩：【com一起+press压--压在一起--压缩】   You need to compress the photos / videos before you send them. compressed files compressor n. 压缩机       Depress v.  压抑，令人郁闷  [de下+ press 压 --向下压 -- 压抑 ]                      He is depressed. / He is down/blue today.              The Great Depression 大萧条           而一般经济衰退叫recession.             Repress v.  压制（情绪，想法，欲望 feelings, thoughts or desires）  【re回去+press --压回去-- 压制】   When I heard the joke, I couldn’t repress my laughter.   I just couldn’t repress my tears.       来记忆repress的同义词：   Suppress v. 压制，抑制（感情）  【sup往下+ press 压 ---压下去--压制情感 】              I couldn’t suppress my tears/laughter.       Oppress v.  压迫;  【op 表示意思加强+press压 --狠狠地压 -- 压迫】     In some areas of the world, the poor people are oppressed by the local government. They are deprived of freedom，job opportunities or education opportunities. We will fight against oppression