| 71. | He is at the bottom of the pecking order. |
| 他处于社会的最下层。
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| 72. | The bottom of the candle is fused with its holder. |
| 蜡烛的底部和烛台粘在一起了。
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| 73. | For nearly three and a half centuries she lay at the bottom of Stockholm harbour until her discovery in 1956. |
| 这艘大船在斯德哥尔摩港口的海底躺了将近几年来个世纪之后，直到1956年才被发现。
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| 74. | He had spotted a tiny bottle at the bottom of my case and he pounced on it with delight. |
| 他在我的箱底发现了一只小瓶，高兴地一把抓了起来。
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| 75. | The sea bed was scoured with powerful nets and there was tremendous excitement on board went a chest was raised from the bottom . |
| 他们用结实的网把海床搜索了一遍。当一只箱子从海底被打捞上来时，甲板上人们激动不已。
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| 76. | Frank gently lifted the crockery out of the box and suddenly noticed a miniature painting at the bottom of the packing case. |
| 弗兰克轻轻地把陶器拿出箱子，突然发现在箱底有一幅微型画，
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| 77. | A tiny asterisk conducted me to a footnote at the bottom of the page. |
| 一个小小的星形符号把我的目光引到了那页底部一个说明上。
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| 78. | Suddenly they came to a waterfall which dropped into an underground lake at the bottom of the cave. |
| 突然，他们来到一道瀑布前，那瀑布奔泻而下，注入洞底一处地下湖里。
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| 79. | A sound made by tapping on the hull of a ship will be reflected from the sea bottom , and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated. |
| 敲打船体所发了的声音会从海底传回来，测出回声间隔的时间，便可算出该处海洋的深度。
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| 80. | So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish. |
| 从测定海深到测定鱼群，这一进展比较容易。
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