《晋书·志·第七章》
一直到永平末年，改用《四分历》，七十多年后，才得以完备。
至永平之末，改行《四分》，七十余年，仪式乃备。
It was not until the end of the Yongping reign that the "Four-part Calendar" was adopted and was only completed more than 70 years later.
<s>[INST] Convert the following modern Chinese text into Classical Chinese: 一直到永平末年，改用《四分历》，七十多年后，才得以完备。 [/INST] 至永平之末，改行《四分》，七十余年，仪式乃备。</s>
Convert the following modern Chinese text into Classical Chinese: 一直到永平末年，改用《四分历》，七十多年后，才得以完备。
user
至永平之末，改行《四分》，七十余年，仪式乃备。
assistant