词汇	chalk soil
释义	chalk soil 白垩土
随便看	artificial cardiopulmonary machine artificial caridac pacemaker artificial caries artificial carlsbad salt artificial carnallite artificial cartilage artificial casing artificial castling artificial catalepsy artificial catgut artificial caving artificial cavity artificial cavity classification artificial celestial body artificial celestial dynamics artificial cell artificial cement artificial cementing Artificial cerebral dura mater patch artificial cerebrospinal fluid artificial cervical disc Artificial cervical disc replacement Artificial cervical intervertebral prothesis artificial cervical vertebra artificial challenge