《北齐书·列传·卷二十一》
乾流着眼泪接诏，其弟昂拔剑起舞，请求以死报答皇帝之恩。
乾垂涕奉诏，弟昂拔剑起舞，请以死自效。
Gan received the order and cried. His younger brother Ang drew his sword and danced, asking that he be allowed to die in order to repay their debt to the emperor.
<s>[INST] 请提供这段文言文的现代汉语解释: 乾垂涕奉诏，弟昂拔剑起舞，请以死自效。 [/INST] 乾流着眼泪接诏，其弟昂拔剑起舞，请求以死报答皇帝之恩。</s>
请提供这段文言文的现代汉语解释: 乾垂涕奉诏，弟昂拔剑起舞，请以死自效。
user
乾流着眼泪接诏，其弟昂拔剑起舞，请求以死报答皇帝之恩。
assistant