In the space of 30 years the old-growth chestnut forest in North America lost every specimen of a species — the mighty chestnut — that formerly constituted a significant hunk of the forest's mass.

在30年的生长中，北美的板栗林失去了物种——高大的栗树——的每个标本，这是以前板栗林中非常重要的一块。

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After 1500, with the conversion of economic technique and history space, the world history constituted globalization language with its particular way.

1500年以后，凭借经济技术与历史空间的转换，世界历史以其特定的方式，构成了全球化语境。

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The system constituted the same observation area in space by the intersection of two linear CCD video fields.

由两台线列CCD摄像机视场交汇，在空间构成平面共视区域。

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He also denied betting shops were becoming more prolific on Britain's high streets, saying bookmakers constituted 4% of retail space in town centres.

BBC: Betting machine