At one time 400 men, women and children lived in the village.
曾一度有400个男人、女人和儿童住在这个村子。
The fact that lake levels in the semiarid southwestern United States appear to have been higher during the last ice age than they are now was at one time attributed to increased precipitation.
美国西南部半干旱地区的湖泊水位在上一个冰河时代似乎比现在更高,这一事实曾一度归因于降水增加。
At one time, ecologists believed that species diversity made ecosystems stable.
生态学家曾一度认为,物种多样性使生态系统变得稳定。
His invasions at one time are turned back when they literally open the dykes and flood the French armies back.
他的入侵曾一度被击退,因为荷兰人,真的"开闸泄洪",大水把法军淹得够呛
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