The yellow eggs of the large white butterfly are laid in clumps on the undersides of cabbage leaves (above) and Brussels sprouts.

大白蝶黄色的卵成簇地产在卷心菜叶(上)和球芽甘蓝阴暗面。

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The yellow eggs of the large white butterfly are laid in cl umps on the undersides of cabbage leaves (above) and brussels sprouts.

大白蝶黄色的卵成簇地产在卷心菜叶（上）和球芽甘蓝阴暗面。

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To find out if the new compounds can alter the course of infection in an animal, Dr Blackwell's group infected some cabbage white butterfly caterpillars with P. aeruginosa.

ECONOMIST: Novel antibiotics