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牧场; 无柄小刷帚 | |||
沼地; 地面临时过水道 | |||
地面临时水道 | |||
低湿草地 | |||
低 〔洼,沼〕地 | |||
浅沼地; 草地 | |||
沼泽 | |||
平缓的凹地; 洼地 | |||
低洼地; 低洼草地 | |||
滩槽 | |||
放火烧林; 沼泽低地; 烘底船; 浅沟; 微洼地 | |||
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放火烧; 烧焦; 熔化; 烧光〔化〕 |
swale: 15 phrases in 8 subjects |
Animal husbandry | 2 |
Desert science | 2 |
Geology | 1 |
Hydroelectric power stations | 2 |
Oil / petroleum | 4 |
Technology | 2 |
United States | 1 |
Water resources | 1 |