词汇	死谷
释义	死谷 sĭgŭDeath Valley
随便看	economic procurement item economic product economic production economic production quantity economic production rate limit economic productivity economic profile economic profit economic profit acquirement economic profit analysis economic profit coefficients Economic profit index system economic profit model economic profits economic prognostics economic program economic programme economic programming economic progress economic project economic projection economic projectional relation Economic Projection and Policy-Making economic projects economic properly