A masked giraffe doll is pictured in front of a children's clothing shop during COVID-19 pandemic in Frankfurt, Germany, Nov. 25, 2020. (Xinhua/Lu Yang)

A gingerbread house with a sign reading "maximum 2 persons" is diplayed in the window of a confectionery shop during COVID-19 pandemic in Frankfurt, Germany, Nov. 25, 2020. (Xinhua/Lu Yang)

Chocolates in the shape of masked Santa Clauses are pictured at a confectionery shop during COVID-19 pandemic in Frankfurt, Germany, Nov. 25, 2020. (Xinhua/Lu Yang)

Chocolates in the shape of masked Santa Clauses are pictured at a confectionery shop during COVID-19 pandemic in Frankfurt, Germany, Nov. 25, 2020. (Xinhua/Lu Yang)