Àn gǔshí de xísú, hē túsū yào cóng niánjì zuì xiǎo de rén hēqǐ.
By old custom, the tusu was drunk starting with the youngest person present.
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Best known from Wang Anshi's New Year poem 《元日》, where the spring wind carries warmth into the tusu. The young drank first because they were gaining a year, the old last because they were losing one.