concentration
[ˌkɒnsnˈtreɪʃn]
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n.集中;专注;浓度;浓缩 |
参考例句:
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- 1. She wrinkled her brows in concentration. 她蹙额皱眉,陷入沉思。
- 2. If smoke is going that way, then it means the concentration here should be decreasing. 如果烟雾沿着这个方向飘,这意味着,这里的浓度应该是减少的。
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