The inexpensive extra-virgin oil started to smell of rubber and plastic almost as soon as it became warm, and fumed at 350 degrees.

便宜的特级纯橄榄油一加热到350度时就冒烟，并开始产生一种橡胶和塑料的气味。

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Partisans of the olive maintain that a high-quality extra-virgin oil brings its special flavor and health benefits to foods cooked in it.

橄榄油的追捧者认为，优质的特级纯橄榄油通过烹饪能带给食物特殊风味并有益健康。

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In fact the panel ranked the heated light oil higher than the heated pricey California extra-virgin oil, whose pungency was no longer balanced by a spicy aroma and had become overbearing.

事实上，专门小组给加热的、素淡油的名次比加热的、更贵的加州特级纯油高，因为加州油的辣味平衡被辛辣味掩盖了。

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In one study, researchers made three types of cakes: margarine only, extra-virgin olive oil only, and a combination of olive oil and margarine.

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She stresses that the local extra-virgin olive oil makes the difference.

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The researchers said that extra-virgin olive oil was used in the study because it contains more polyphenols, which have been shown to improve cholesterol levels, than refined olive oil.

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