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A rigid, clear thermoplastic polymer that can be molded into objects or made into a foam that is used to insulate refrigerators.
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聚苯乙烯一种硬而明亮的热塑性聚合物，它能被铸成物件或制成用来给冰箱隔热的一种泡沫. |
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A rigidly-structured daily one-hour lesson was prescribed for all primary-school children, focusing on the mechanics of reading.
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每个小学生每天都要花一个小时学习一个结构死板的课程，旨在改变阅读方式。 |
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A rim, as of a vessel, bell, or crater.
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边容器、铃和坑的边缘 |
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A ringed seal scans for polar bears before snatching a breath.
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一只环斑海豹在浮出水面前扫视周围是否有北极熊。 |
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A riotous, boisterous, or drunken festivity; a revel.
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闹酒狂欢狂欢的、喧闹的或酒醉的节日；狂欢 |
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A ripple , as on the surface of water.
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她把一块石头扔进池塘里,看著水的波纹扩散开. |
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A ripple, as on the surface of water.
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（水面上的等）细浪，涟漪 |
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A rise in oil prices depresses the car market.
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油价上涨导致汽车市场不景气. |
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A rise in serum creatinine level after contrast was significantly associated with the severity of pre-contrast renal impairment and the presence of diabetes mellitus but not with the type of contrast used.
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造影后血清肌酐水平的升高和造影前肾脏功能损害的严重程度以及存在糖尿病相关，而和所使用的造影剂类型无关。 |
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A rise in the base rate from 5.25% to 5.5% looks certain when the bank's monetary-policy committee meets on May 10th, and this prospect has helped to push already-strong sterling through the $2 barrier.
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今年5月10日银行货币政策委员会会议后，基准利率从5.25%上升至5.5%看上去已成定局，这一期望帮助坚挺的英镑越了2美元的关口。 |
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A rise in the cost of living touches everyone.
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生活费用的增加与每个人都有关系。 |
