A quick spray of lavender, eucalyptus, rosemary, or lemon can clear your head quicker than you think.

薰衣草，桉树，迷迭香或者柠檬喷雾可以快速清醒你的头脑。

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A scent of lemon and eucalyptus wafted up from the gardens.

一股柠檬和桉树的芬芳从花园飘来。

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This study indicates that lemon eucalyptus may be propagated via tissue culture, a technique useful for rapid propagation of selected clones.

本研究结果表明，可以用组织培养技术，快速繁殖经过选优的柠檬桉优良无性系。

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Lemon juice or vinegar is a much handier way of removing chewing gum from fabric than the eucalyptus oil that the author recommends.

ECONOMIST: Christmas tips