| 1. | The story goes back to the middle of the nineteenth century .
故事追溯到19世纪中叶。 |
| 2. | Do the vanes in the figure rotate clockwise or counterclockwise ?
图中叶片的旋转方向是顺时针的，还是反时针的？ |
| 3. | Distilleries began to appear in europe in the middle of the seventeenth century .
欧洲最早的烧酒作坊出现于十七世纪中叶。 |
| 4. | Even so, by the mid-thirteen hundreds, european paintings were depicting monks wearing eyeglasses .
尽管如此，到十四世纪中叶，欧洲的绘画中已经出现了戴眼镜的僧侣的形象。 |
| 5. | The immigrants who had been coming across the pacific from china since the mid-nineteenth century presented a new problem .
从19世纪中叶起，经太平洋从中国来的移民引起了新的问题。 |
| 6. | From about the middle of the eighteenth century the improvement in agricultural technique began to make it possible to economize in labour .
自十八世纪中叶前后起，由于农业技术的改进，节约劳动力开始成为可能。 |
| 7. | Property to control the appearance of the leaf nodes in the
控件中叶节点的外观。 |
| 8. | On the struggle for imperial power in middle ming dynasty
论明代中叶的皇权之争 |
| 9. | Pan shangpeng and deliberated about pang shangpeng
明中叶经济改革家庞尚鹏研究文献考述 |
