《后汉书·列传·第五钟离宋寒列传》
帝说 ：即使这样，四侯没有事，为什么不早奏明，让官司久拖至今呢？ 
朗心伤其冤，试以建等物色独问忠、平，而二人错愕不能对。
The Emperor said: "Even so, why didn't you report that the four marquises were not guilty earlier, and instead let the lawsuit drag on until now?"
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 朗心伤其冤，试以建等物色独问忠、平，而二人错愕不能对。 [/INST] The Emperor said: "Even so, why didn't you report that the four marquises were not guilty earlier, and instead let the lawsuit drag on until now?"</s>
Explain the meaning of this Classical Chinese passage in English: 朗心伤其冤，试以建等物色独问忠、平，而二人错愕不能对。
user
The Emperor said: "Even so, why didn't you report that the four marquises were not guilty earlier, and instead let the lawsuit drag on until now?"
assistant