| 单词 | 产奶量 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔silo〕Before silos were invented, cows gave less milk during winter because they had no green grass to eat.筒仓发明前，因为没有青草可以吃，奶牛在冬天产奶量减少。柯林斯高阶〔yield〕The average milk yield per cow has doubled.每头奶牛的产奶量翻了一番。朗文当代 |
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