英语
西班牙语
英语
西班牙语
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单语范例（未经PONS编辑处理）
Feathers for dusters are the ostrich families most valuable industrial commodity.
en.wikipedia.org A butler took a duster and brushed it up, tinkling the keys.
en.wikipedia.org Both were commonly used in pilot training; after being decommissioned, these smaller models were later used extensively as crop dusters in the postwar years.
en.wikipedia.org As such, there is also a warning label present on some gas dusters.
en.wikipedia.org After the war, many were used as crop dusters and in other roles.
en.wikipedia.org