| 21. | listen with unflagging attention, interest, concentration , etc |
| 全神贯注地, 兴趣昂然地, 聚精会神地
|
| 22. | an ore-dressing [a concentration ] plant |
| 选矿厂
|
| 23. | clap them in concentration camps |
| 将他们投入集中营
|
| 24. | cultivate mental concentration |
| 培养集中思想的能力
|
| 25. | disrupt [disturb] sb's mental concentration |
| 扰乱某人的思想集中
|
| 26. | a job that requires great concentration |
| 需要全神贯注才能做好的工作
|
| 27. | read with deep concentration |
| 聚精会神地阅读
|
| 28. | multistage ore concentration |
| 多段选矿法
|
| 29. | listen with concentration |
| 专心地听
|
| 30. | concentration of thought |
| 思想集中
|