(1) Summer and Spring
(2) ① "Su Muzhe": homesickness. "Tie the skirt waist" lovesickness and longs for reunion.
②Pun technique is used. The last sentence "Ask when the lotus root will bloom, when the lotus will bloom", the homonym of "lotus" is the pun of "even", and the homonym of "lotus" is the pun of "pity". On the surface of this sentence, it is said that one does not know when the lotus will produce lotus roots and on what day the lotus will be born. In fact, it is said that one does not know when one will be reunited with the one he loves and gain the love and affection of his sweetheart.
(As long as the meaning is correct)