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41. | unpaid contribution (of the work of women) |
| 无报酬的贡献 |
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42. | Generally, the contribution is positive. It can be expressed in total, per unit and percent. |
| 一般说来,边际贡献是正数,它可以表示为贡献总额、单位边际贡献和边际贡献率。 |
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43. | His concern for the masses made an indelible impression on us. |
| 他对群众的关怀给我们留下不可磨灭的印象。 |
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44. | Then contribution can be calculated as following... |
| 边际贡献计算如下… |
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45. | Mathematics can be said to be required to build on the achievements is indelible. |
| 可以说反证法为数学所建立的功勋是不可磨灭的。 |
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46. | There was no mention of her contribution. |
| 没提到她的贡献. |
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47. | to proffer rich gifts |
| 贡献丰富的礼物 |
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48. | service to the cause of education |
| 对教育事业的贡献 |
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49. | and use their talents. |
| 贡献他们的才能。 |
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50. | unit contribution margin |
| 单位贡献毛益 |
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