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41. | circular arc spur gear |
| 圆弧直齿轮 |
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42. | spur of nasal septum |
| 鼻中隔骨棘 |
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43. | Never spur a willing horse. |
| 莫踢良驹。 |
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44. | spur/promote intensive cooperation |
| 促进密切合作 |
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45. | to encourage; to spur on |
| 策励 |
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46. | Untimeous spur spill the steed. |
| 多用踢马剌,骏马也变痴。 |
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47. | The limping(柔软的) shrimp(小虾) impulsively(有推动力地) implemented(工具、贯彻、执行) the compulsory(必须做、必修、被强制做、义务) duty |
| 柔软的小虾有推动力地执行被强制的义务。 |
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48. | double-reduction bevel-spur gear |
| 双级圆锥-圆柱齿轮减速器 |
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49. | traumatic spur of nasal septum |
| 外伤性鼻中隔骨刺 |
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50. | a spur to greater efficiency |
| 提高效率的刺激因素. |
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