The subject of rock 'n' roll has been controversial and a source of conflict between parents and children ever since it first appeared on the scene in the mid 1950's.
自从二十世纪五十年代中期诞生以来，摇滚乐就一直是父母和孩子之间冲突的原因之一。
At some point this will change, particularly after the S America roll completes.
在将来的某一刻这种情形将会改变，尤其是在南美滚动完成之后。
The influence of work roll′s bending force on roll′s bending deformation, roll gap geometry and exit thickness is investigated under the conditions of different width and thickness of sheet.
研究了不同宽度和厚度下工作辊弯辊力对辊系变形、辊缝形状及轧件出口厚度的影响规律。
Should the U. S. roll out specific tariff plans, China would carefully assess them and react accordingly, Gao said.
如果美国推出具体关税计划，中国会仔细评估并做出相应的反应。
The results show that cold-roll texture mainly consists of copper-type texture, r-type texture and some S-type texture, when the general deformation rate is 96%.
结果表明：轧制总变形率为96%的铝箔，织构以铜型织构、R型织构和一些S织构为主。
The app will likely roll out in the U. S. sometime this summer.
在美国，这款应用很可能将于今年夏天面世。
They deliver some real rock 'n roll goodies from the 70's as well as modern rock tunes.
他们演奏的音乐包括70年流行摇滚歌曲以及现代摇滚旋律。
They deliver some real rock 'n roll goodies from the 70's as well as modern rock tunes.
他们演奏的音乐包括70年流行摇滚歌曲以及现代摇滚旋律。
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