劍橋詞典in the US, a symbol that marks a film that parents are strongly warned might not be suitable for children under the age of 13 (美國(guó)使用的影片標(biāo)識(shí),強(qiáng)烈提醒家長(zhǎng)13歲以下兒童可能不宜觀看的) PG-13級(jí)影片 返回 PG-13