求翻译：摇滚是一种音乐类型，起源于1940年代末期的美国，1950年代早期开始流行，迅速风靡全球。摇滚乐以其灵活大胆的表现形式和富有激情的音乐节奏表达情感，受到了全世界年轻人的喜爱。摇滚乐并在1960年代和1970年代形成一股热潮。是什么意思？

The rock is a genre of music originated in the late 1940s the United States in the early 1950s became popular, and quickly swept the world. Rock with its flexible and bold expressions and passionate rhythm of the music to express emotion, has been the favorite of young people around the world. Rock

Rock is a type of music that originated in the late 1940s early 1950s, the United States began to spread rapidly, and fashionable all over the world. With its flexible rock bold expressions and passionate music express their emotions, and the young people of the world's favorite. Rock music and in t

The rock and roll is one kind of music type, originned in 1940 age last stage US, 1950 age early times started popularly, was all the rage the whole world rapidly.The rock and roll by its nimble bold manifestation and the rich fervor music rhythm expression emotion, has received the world young peop

Rock is a musical genre, originated in the late 1940 's United States, early 1950 's became popular quickly swept the world. Form of rock music to its flexible and bold and passionate expression of rhythm emotion, loved by the young people all over the world. Rock n ' roll and form a craze in the 19

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