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- cotton roll gingivitis 棉卷性龈炎
- Determine cotton roll-the uniform of meter(yard) sectional length and practical length. Check and calculate the specific elongation of cotton roll. 测定棉卷一米（或码）长度片段的均匀情况、实际长度，核算棉卷的伸长率。
- Cotton cloth is made in a cotton mill. 棉布是由棉纺厂生产的。
- Chock the barrel up or else it will roll over. 用楔子塞住圆桶,不然它会滚过去。
- The slow steady roll of the ship made him sick. 轮船不停地缓慢摇晃使他感到不适。
- The cotton pickers want more money. 采棉工人要求更多的报酬。
- The desk calculator use a roll of paper. 这台台式计算机使用卷纸。
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- She is crazy about rock and roll. 她喜欢摇滚乐。
- She dabbed at the cut with cotton wool. 她用药棉轻轻地按了按伤口。
- He didn't seem to cotton on to me then. 当时他似乎并不喜欢我。
- I'm going to a rock and roll concert tonight. 我今晚正要去参加摇滚音乐会。
- If the table top isn't level, things will roll off. 如果桌面不平，东西就会滚下来。
- Cotton is more comfortable to wear than nylon. 棉布比尼龙穿着舒服。
- She picked cotton much faster than I. 她摘棉花比我摘得快。
- The boy turned up missing at roll call. 小男孩在点名时不见了。
- The jokes made everybody roll about. 那些笑话逗得人人捧腹大笑。
- The import of cotton goods went up sharply in 1986. 在1986年，棉织品的进口猛增。
- The teacher calls the roll every evening. 老师每晚都要点名。
- He wrote a meritorious theme about his visit to the cotton mill. 他写了一篇关于参观棉纺织厂的有价值的论文。
