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11. | He is digging at biology. |
| 他在钻研生物学。 |
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12. | take a dive into physics |
| 埋头钻研物理学 |
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13. | plough through a Book |
| 慢慢钻研一本书 |
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14. | He has been delving into Chinese folklore for many years |
| 多年来他一直在钻研中国民俗。 |
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15. | Bone up on a problem |
| 突击钻研一个问题 |
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16. | He is digging into Chinese history. |
| 他正在钻研中国历史。 |
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17. | dive into a new project |
| 潜心钻研一个新项目. |
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18. | We addressed ourselves vigorously to this problem. |
| 我们奋力钻研这一问题。 |
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19. | She is digging at ancient Chinese prose |
| 她在钻研古汉语散文。 |
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20. | Henry likes to have some tough problems to bite on. |
| 亨利喜欢钻研一些难题。 |
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