Some automobile makers and customizers can fit your tank with a kind of foam used in race cars to protect fuel tanks and conserve fuel.

一些汽车制造商和定制服务商可以在你的油箱里填入一种用于赛车的泡沫材料来保护油箱和节约燃料。

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There is a kind of drone race starting, he says.Harris says about 50 countries use surveillance drones, though not very many use armed drones the way the United States does.

哈里斯说，有一种类型的无人机竞赛正在悄悄开始，大约有50个国家将其用于监督，尽管不是所有的国家都像美国一样用于军事领域。

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There is a kind of drone race starting, he says. Harris says about 50 countries use surveillance drones, though not very many use armed drones the way the United States does.

哈里斯说，有一种类型的无人机竞赛正在悄悄开始，大约有50个国家将其用于监督，尽管不是所有的国家都像美国一样用于军事领域。

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So there is a kind of grammar of race that this boy is learning while he experiences language in all these other more visceral, family-oriented ways.

更直接地谈下去会有危险时,这男孩在学习地区或者种族语言,特有的表达方式，同时他的家庭影响也塑造着他的语言。

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and I guess we're kind of a violent race, somewhat,

我猜我们是个暴力的民族，大概那样，

美国和美式足球 - SpeakingMax英语口语达人

The sport of competitive memorizing is driven by a kind of arms race.

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The multi-asset investment strategy is a different kind of race.

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Since then, a boom in artisanal coffee culture triggered a kind of arms race in which various trendy descriptors overwhelm the humble coffee beans: organic, fair-trade, shade-grown, locally roasted, etc.

WSJ: From Patents to Memberships, Coffee Shops Offer New Perks