They appeared in court not to raise defences, but to challenge the courtjurisdiction.
他们来法院不是应诉，而是抗辩。
《新英汉大辞典》
2
Because the courtjurisdiction is the lawsuit entrance, which is the first defense line of the lawsuit fair, the jurisdiction system has also become one of the important system in civil procedure law.
由于法院管辖是诉讼的入口，是诉讼公正的第一道防线，因而管辖制度也就成了民事诉讼法中的一项重要制度。
3
This case comes under the jurisdiction of a lower court.