发明家亨利·贝塞默发现，在熔炉里对铁水直接吹一吹气，就会烧掉使铁变脆的杂质。

The inventor Henry Bessemer discovered that directing a blast of air at melted iron in a furnace would burn out the impurities that made the iron brittle.

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风一吹，花瓣就飘走了。

When the wind blows, the petals float away.

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钟声响后又过了几分钟，有一样东西缓慢地从旗杆上升起来，微风一吹，那件东西就展开了。

A few minutes after the hour had struck something moved slowly up the staff, and extended itself upon the breeze.

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