词汇	double-sonic speed
释义	double-sonic speed 二倍音速
随便看	cooperative therapy Cooperative Threat Reduction Cooperative Threat Reduction Programme Cooperative Threat Reduction Programs cooperative time cooperative timing cooperative tracking system cooperative trade co operative trade cooperative tradition cooperative training cooperative transactional processing cooperative transaction processing cooperative transformation of agriculture cooperative transition cooperative translation cooperative transmission cooperative transmission system cooperative transposition cooperative trusteeship afforesting cooperative type management cooperative-type management cooperative user agent cooperative utilities cooperative venture