色，戒
When it is used in the film "Lust, Caution", its "pathos and poignancy" is strengthened by the evidence of the Japanese occupation in the film's setting. "The Oxford Handbook of Chinese Cinemas" says the song's use in "Street Angel" was an attempt to replace "the old 'vulgar' connotations of "shidaiqu" with feelings of national awareness", while its use in "Lust, Caution" was "a defiant expression" of "shidaiqu" under Japanese occupation.