recalln.回忆；取消；召回vt.召回；恢复；回想起；唤起；与 ... 相似recall system召回制度Recall policy召回政策recall period回忆期recall thrust反冲力recall button重新呼叫键recall finder重新呼叫选择器recall notice催书单recall method回忆法recall signal回叫信号recall factor检索率