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31. | To whistle lightly. |
| 发轻吹声轻轻的发出唿哨声 |
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32. | whistle-stop campaig |
| (尤指候选人作竞选旅行时在列车站台上的)短暂停留竞选活动 |
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33. | blast of whistle |
| 汽笛声 |
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34. | whistle post sign |
| 司机鸣笛标 |
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35. | electric whistle control |
| 电笛控制 |
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36. | release brake whistle |
| 制动缓解汽笛 |
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37. | approaching station whistle |
| 接近车站鸣笛 |
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38. | Whistle a tune. |
| 吹出一个调子 |
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39. | whistle-stop tour |
| ph.1. 短暂(停留)的访问 |
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40. | whistle-pipe sampler |
| 笛管取样机 |
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