常見(jiàn)例句雙語(yǔ)例句Alfalfa(Medicago sativa L. )is a perennial legume grass which was cultivated widely on semi-humid areas of the loess plateau.紫花苜蓿是多年生豆科牧草作物，在黃土高原半溼潤(rùn)區(qū)大麪積栽培。Based on the long-term observation, the stability, especially by applying N-fertilizer, of mixture grassland of cultivated perennial grass is studied.本研究在長(zhǎng)期觀測(cè)的基礎(chǔ)上，就多年生混播禾草草地的穩(wěn)定性，尤其是施氮條件下的穩(wěn)定性進(jìn)行了研究。A perennial rhizomatous grass (Poa pratensis) native to Eurasia and North Africa and naturalized throughout the United States. It is commonly cultivated for pasture and lawns.原生於歐亞大陸和北非的一種多年生根狀莖草本植物（草地草熟禾草熟禾屬） ，在整個(gè)美國(guó)也已移植成功。一般做爲(wèi)牧草和草坪來(lái)種植。odict.net 返回 cultivated perennial grass