There is no logical relationship between "spring warming" and drinking "Tu Su". The word "Ru" before "Tu Su" (it should be "drinking" or "drinking", etc. ) is a mismatching.
"Tu Su" in Ci Hai has three meanings:
(1) wine name. ② Grass name. 3 houses; Cao An.
Song Shu Rousseau biography: "(Tuoba) Tao lived, was struck by lightning and fell down." Du Fu's poem "Huai Ye Han Tao" said: "I am willing to follow, go to the Soviet Union." Qiu quoted: "Sue, the home of the son of heaven."