 |
二段
| 曝气
| 二段 | |
| footb. | 2d |
| 曝气 | |
| gen. | airing |
| agric. | aerate; aeration |
| avia. | aerate |
| hydroel.st. | aeration |
| tech. | pneumatic aeration |
| |||
| 2d | |||
| 二段: 200 phrase in 42 subjects |
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