词汇	electric ball
释义	electric ball 导体球
随便看	cooperative savings co operative savings co-operative savings cooperative scheduling cooperative school cooperative schooling cooperative school running cooperative school-running Cooperative Science Tests cooperatives commercialization cooperative spectrum etiquette cooperative spectrum sensing cooperative search Cooperative searching cooperative sector cooperative sector of the economy cooperative security cooperative security and stability cooperative security location cooperative security outlook cooperative sensing cooperative sensitization cooperative sensors management cooperative service cooperative service for complex equipments