《明史·志·卷二十六》
每年的一定时节进行祭祀，祭祀牺牲用太牢。
岁时祭祀，牲用太牢。
Sacrifices were carried out at a specific time each year, and the sacrifices were made with generous offerings.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 岁时祭祀，牲用太牢。 [/INST] Sacrifices were carried out at a specific time each year, and the sacrifices were made with generous offerings.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 岁时祭祀，牲用太牢。
user
Sacrifices were carried out at a specific time each year, and the sacrifices were made with generous offerings.
assistant