In Europe, for instance, spring flowerings in 2000 occurred about 8 days earlier than they did in 1971 on average, and autumn events, such as changes in leaf colour, about 3 days earlier.

例如在欧洲，2000年春季开花的时间比1971年平均开花时间早8天，而在秋天，植物的变化如叶子变色等，则早了3天。

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Genetic analysis indicated that the leaf colour mutant was controlled by a single recessive gene.

该叶色突变性状受隐性单基因控制。

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An automatic system to recognize tobacco leaf colour is established by using a scanner and a computer.

利用扫描仪和计算机建立了烟叶的自动辨色系统。

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Good colour sorters need to learn to tell three dozen leaf shades ranging from a deep brown to a rich green at a glance.

ECONOMIST: Cuban cigars