境内

例句：

1. 1. The companyoperates within the domestic market.
   该公司在国内市场上运营。
2. 2.The government has announced a new policy toimprove the living conditions of its citizens withinthe national borders.
   政府宣布了一项新政策，旨在改善其公民在国家边界内的居住条件。
3. 3. The researchwas conducted within the confines of the country'sborders.
   这项研究是在该国边界范围内进行的。