搜元素提供国外优质的免版权矢量素材资源免费下载，该资源的中文名称是：Continuous one line drawing man teacher professor standing in front of blackboard teaching student in classroom. College class or university teacher teach in classroom. Single line draw design vector，英文名称是：Continuous one line drawing man teacher professor standing in front of blackboard teaching student in classroom. College class or university teacher teach in classroom. Single line draw design vector，该资源由网友上传，提供高速下载。
