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| 41. | A poisonous secretion of an animal, such as a snake, spider, or scorpion, usually transmitted by a bite |
| 毒液一种诸如蛇、蜘蛛或蝎等动物的有毒的分泌物，通常通过咬或叮传染 |
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| 42. | Xenotransplantation, as such animal-to-human donations are known, has had a surprisingly long history |
| 把动物组织或器官植入人体内的异种器官移植有着令人惊讶的悠久历史，但遗憾的是几乎所有的尝试均不幸以失败告终。 |
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| 43. | One of the segments or divisions in the body of a jointed animal, such as an arthropod. |
| 体节环节动物身体的一节或一部分，如节肢动物 |
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| 44. | A structure used for locomotion or attachment in an invertebrate animal, such as the muscular organ extending |
| 足部无脊椎动物用于移动或接连的结构，比如软体动物腹侧延伸的强壮器官 |
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| 45. | But for a cold-blooded animal such as a frog or a snake it is a different matter. |
| 但是对于冷血动物，如青蛙和蛇，情况就不一样了。 |
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| 46. | An animal, such as a cat, having a coat that is mottled in tones of white with red and black. |
| 带斑纹动物一种有白色夹杂红色和黑色斑纹皮毛的动物，如猫 |
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| 47. | In a nutshell, OWL facilitates semantic descriptions such as Dog is an animal or Dog has four legs |
| OWL使语义描述变得简单，譬如狗是动物或狗有四条腿。 |
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| 48. | "burrow:a hole or tunnel dug in the ground by a small animal, such as a rabbit or a mole, for habitation |
| 地洞:某些小动物(如兔子或鼹鼠)在地下挖的、供居住或躲藏的洞或地道。 |
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| 49. | an animal such as a donkey or ox or elephant used for transporting loads or doing other heavy work. |
| 用于运输货物或做其他苦力的动物，如猴子、牛、象。 |
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| 50. | One of the jointed appendages of an animal, such as an arm, a leg, a wing, or a flipper, used for locomotion |
| 肢，翼动物身上由关节相连的附肢，如胳膊、小腿、翅膀或鳍状肢，通常用于运动或抓取 |
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