| 71. | Too much sweet food may increase your weight . |
| 甜食吃得太多会增加体重。
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| 72. | The youth club leader was unpopular because he was always flinging his weight around. |
| 青年俱乐部的负责人不受欢迎，因为他总爱瞎指挥。
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| 73. | Tie a heavy weight at the end of a long piece of string. |
| 把一个生物拴在一根长绳子的一端，
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| 74. | With the hand to and fro and around but not up and string so that the weight nearly touches the ground. |
| 把手高高举在空中握住绳子，让重物几乎接触地面。
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| 75. | It will be found that the weight a piece of string. |
| 结果会发现，重物是动了，但动得很小，甚至没动。
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| 76. | With the hand held high in the air, hold the string so that the weight nearly touches the ground. |
| 假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，假定地震发生了，地板、纸、你和你的手都会动，重物和笔却不动。
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| 77. | It will be found that ten weight moves but slightly or not at all. |
| 结果会发现，重物是动了，但动得很小，甚至没动。
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| 78. | In the midst of all this movement, the weight and the pen would be still. |
| 假定地震发生了，地板、纸、你和你的手都会动，重物和笔却不动。由于纸在笔下来回运动，纸的表面就会用墨水记录下地板运动的情况。
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| 79. | It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country. |
| 据估计，在英国蜘蛛一年里所消灭昆虫的重量超过这个国家人口的总重量。
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| 80. | he knows while he looks at one side what the other side is like, he identifies himself with its centre of gravity, its mass, its weight ; |
| 他看物体的一边时，便知道另一边是个什么样子。他把自身和物体重心、质量、重量融为一体。
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