The Two Types of Fat
两类脂肪
Fat is a concentrated source of energy.
脂肪是能量的主要来源，
It can be divided into two main groups—saturated and unsaturated.
它有饱和与不饱和两大类。
Saturated fat is generally solid at room temperature and is usually from animal sources.
饱和脂肪在常温下是固体，通常来源于动物。
It's found in butter, hard margarine, cheese, whole milk and anything that contains these ingredients,such as cakes, chocolate, biscuits, pies and pastries.
黄油，硬人造黄油，奶酪，全脂牛奶和含有这些成分的其他食物，如蛋糕，巧克力，饼干，馅饼和酥皮糕点，都含有饱和脂肪。
It's also the white fat you can see on red meat and underneath poultry skin.
它也是白脂肪，在红肉上以及家禽皮下都能见到。
Unsaturated fat is usually liquid at room temperature and generally comes from vegetable sources.
不饱和脂肪在常温下是液体，通常来源于植物。
Unsaturated vegetable oils are generally a healthier alternative to saturated fat and can be found in sesame, sunflower, soya, olive oil, soft margarine and in foods such as oily fish, including sardines and salmon.
不饱和植物油比饱和脂肪更艰苦，含有不饱和脂肪的食物有:芝麻，向日葵，大豆，橄榄油，软植物黄油和富含脂肪的鱼，包括沙丁鱼和鲑鱼。
The value of saturated and unsaturated fat in our diets isn't fully understood yet,but generally, eating too much saturated fat is associated with an increased risk of heart disease.
饱和与不饱和脂肪对我们的作用仍未明确，但通常来说，食用过量的饱和脂肪会增加心脏疾病的风险。
Where possible, you should ensure that the fat you eat is unsaturated.
只要可以，就应该确保食用的脂肪是不饱和的。