tìhm syūn gāi gyún
甜酸 is sweet and sour (甜 is sweet, and 酸 is sour), 雞 is chicken, and 卷 is roll, so 甜酸雞卷 is sweet and sour chicken roll.
Rolls of tofu skin with chicken inside, in a sweet and sour sauce.
sweet and sour seafood nuggets