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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Ling-Ling or Hsing-Hsing:

PANDA: Ling-Ling or Hsing-Hsing
PANDAS: Hsing-Hsing and Ling-Ling
URSID: Ling-Ling or Hsing-Hsing, taxonomically
PANDAS: Ling-Ling and Hsing-Hsing