《新唐书·本纪·卷六·肃宗 代宗》
三月初九，雨水着树成冰。
三月庚子，雨木冰。
On the 9th of March, rain froze into ice on trees.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 三月庚子，雨木冰。 [/INST] On the 9th of March, rain froze into ice on trees.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 三月庚子，雨木冰。
user
On the 9th of March, rain froze into ice on trees.
assistant