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| 单词 | four-course |
| 释义 | > as lemmasfour-course four-course n. Agriculture a four years' course or series of crops in rotation (in quots. attributive; see course n. 31). ΘΚΠ the world > food and drink > farming > cultivation or tillage > cultivation of plants or crops > [adjective] > rotation of crops rotational1771 four-course1846 1846 J. Baxter Libr. Pract. Agric. (ed. 4) II. 245 By what is termed the four-course shift, having equal proportions of fallow, barley, clover, peas or beans, and wheat in each year. 1891 ‘S. C. Scrivener’ Our Fields & Cities iv. 28 This ‘Four-Course’ system, as it is called, produces five entirely different plants, namely, turnips, barley, beans, clover, and wheat. < as lemmas |
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