/ˌdi:kəmˈpres ||; ˌdikəmˈprɛs/verb1 [I,T] to have the air pressure in sth reduced to a normal level or to reduce it to its normal level （使）减压至正常水平
2 [T] (computing计算机技术) to give files their original size again after they have been made smaller to fit into less space on a disk, etc. 解压缩（即使文档恢复至原来大小）