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1. | To attain proficiency |
| 臻于娴熟 |
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2. | proficiency badge |
| 专长徽章 |
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3. | maintenance proficiency |
| 维修熟练程度 |
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4. | language proficiency certificate |
| 语文资格证书 |
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5. | proficiency test |
| 熟练测验 |
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6. | proficiency as; skill |
| 技能; 技巧 |
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7. | proficiency course |
| 专长课程 |
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8. | English proficiency result |
| 英语水平证明 |
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9. | proficiency testing |
| 熟练水平试验 |
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10. | proficiency in English |
| 精通英语 |
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