31. | The green book is at the bottom of the pile and the red one is on top. |
| 绿皮的书在那一摞的底下,红皮的在上边。
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32. | The ship has touched bottom -- the estuary must be shallower than we thought. |
| 船搁浅了-这河口的水比我们想像的要浅。
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33. | When he was forced to beg from his friends he felt he had touched bottom and could sink no lower. |
| 等到他被迫向朋友乞讨时,他觉得自己的境况已糟到无以复加的地步了。
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34. | The dregs have settled at the bottom of the bottle. |
| 渣滓都沉到瓶底了。
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35. | A box has a top, a bottom and four sides. |
| 盒子有顶面, 底面和四个侧面。
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36. | The ship sank (to the bottom of the ocean). |
| 船沉(到海底)了。
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37. | They sank the barge by making a hole in the bottom . |
| 他们在驳船底部打个洞把它弄沉了。
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38. | Water was slopping around in the bottom of the boat. |
| 水在船底晃晃荡荡的。
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39. | Her skin is still as smooth as a baby's bottom . |
| 她的皮肤仍然十分柔软, 光滑。
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40. | The child was sitting on the bottom stair. |
| 那孩子正坐在楼梯最下面的一级上。
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