The United States should also develop a plan to offset the economic sanctions that China itself would levy against countries that aided in the defense of Taiwan.
各位前辈好，想请教此句中两个that的用法，第一个that是修饰先行词economic sanctions 的关代用法吗？第二个that是修饰countries的关代吗？如果要还原成原本的句子和翻译成中文要怎么样比较顺畅，非常谢谢！！