81. | Each new fact discovered by science adds to the universal store of human knowledge. |
| 科学上的每一个新发现都丰富了人类知识的共同宝库。
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82. | None of them has added one straw to the happiness of the human race. |
| 他们谁也没给人类增添过一星半点的幸福。
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83. | It is beyond human strength. |
| 这非人力所能及。
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84. | Doctors study the structure of the human body. |
| 医生们研究人体构造。
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85. | The human body is a wonderful and complex structure. |
| 人体是一个奇妙而复杂的结构。
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86. | All human bodies are uniform in their structure. |
| 所有人体的结构都相同。
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87. | Such hardships are more than the human frame can bear. |
| 这样的辛苦是人的身体所承受不住的。
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88. | Machines have increasingly replaced human sweat. |
| 机器越来越多地取代了人力劳动。
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89. | The present is an unusual time in human history. |
| 当前时人类历史上不寻常的时期。
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90. | Automobile accidents take a heavy toll of human lives. |
| 车祸使许许多多的人丧生。
|