关于美国电影分级制度
G- General Audiences (1968–present)
All ages admitted
PG- Parental Guidance Suggested (1972–present)
Some material may not be suitable for children
PG-13- Parents Strongly Cautioned (1984–present)
Some material may be inappropriate for children under 13
R- Restricted (1968–present)
Under 17 requires accompanying by a parent or adult guardian
NC-17- No One 17 and Under Admitted (1990–present)
从G到NC-17
All ages admitted
PG- Parental Guidance Suggested (1972–present)
Some material may not be suitable for children
PG-13- Parents Strongly Cautioned (1984–present)
Some material may be inappropriate for children under 13
R- Restricted (1968–present)
Under 17 requires accompanying by a parent or adult guardian
NC-17- No One 17 and Under Admitted (1990–present)
从G到NC-17
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