become less tense, rest, or take one''s ease; "He relaxed in the hot tub"; "Let''s all relax after a hard day''s work" 同义词:relax, loosen up, unbend, unwind, slow down,
decrease the pressure of; "depressurize the cabin in the air plane" 同义词:depressurize, depressurise,
restore to its uncompressed form; "decompress data" 同义词:uncompress,