杰克有一个大的运动收藏品。

Jack has a great sports collection.

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这些指控源于去年他在拉斯维加斯与两名运动纪念品收藏家的激烈冲突。

The charges stem from a heated encounter with two sports memorabilia collectors in Las Vegas last year.

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它靠飞行器的向前运动吸进空气，用特殊形状的进气信道把空气压缩，供燃烧之用。收藏。

It relies on the craft's forward motion to draw in air and on a specially shaped intake passage to compress the air for combustion.

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