词典释义：
land covered with grass and other low plants suitable for grazing animals, especially cattle or sheep
牧场。
the grass and herbage growing on such land
牧草
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[as modifier]
a range of pasture grasses .一大片牧草。
[count noun]
〈喻〉 施展拳脚的地方；施展抱负的行动
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she left the office for pastures new .她离开这个职位去新的地方施展抱负。[<Bold>ORIGIN</Bold>: sense suggested by ‘Tomorrow to fresh woods and pastures new' (Milton's <Italic>Lycidas</Italic>).]
put (animals) to graze in a pasture
放牧（牲畜）
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they pastured their cows in the water meadow .他们在水草地上放牛。
[no obj.](of animals)graze
（动物）吃草
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the livestock pastured and the crops grew .家畜吃草，庄稼生长。
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put someone out to pasture force someone to retire 使退休
"Middle English： from Old French, from late Latin