Teach someone a useful skill – cooking, changing a tire, balancing a checkbook.

教给他人一项有用的技术——例如烹调、拆换轮胎，平衡支票簿。

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Make sure your spare has air in it, and also make sure you know where all of the included tire-changing tools are.

确保备用轮胎有气，并且知道换胎所需的所有工具放在哪里。

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Hummer's tires are big and heavy, that in such hot and humid weather, Xiao Lin, the driver was nearly fainted for changing the flat tire.

悍马轮胎又大又重，天气又闷热，等换好轮胎，司机小林都快累晕倒了。

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He must have slipped and accidentally punctured the tube when he was changing a tire.

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Despres, whose main pre-race rival for the title Spaniard Marc Coma saw his chances disappear last weekend when he was penalized six hours for illegally changing a tire, has a lead of one hour, 20 minutes over Norwegian Pal Ullevalseter.

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