1·Body weight is strongly influenced by biology—it is not an individual's fault if they develop obesity.
生物学对体重影响极大——发胖并不是个人的错。
2·Body weight is not always the best indicator of health and a thin person still needs to eat well and exercise regularly.
体重并不总是健康的最佳指标，瘦的人仍然需要吃得好，有规律地锻炼。
3·The brain accounts for merely three percent of body weight.
大脑仅占体重的3％。
—— 《柯林斯英汉双解大词典》
4·As a rough guide, a horse needs 2.5 percent of its body weight in food every day.
作为一个大致的标准，一匹马每天需要相当于它体重2.5%的食物。
—— 《柯林斯英汉双解大词典》
5·The developed countries are responsible for 44% of waste, and in the US alone, the average person throws away their body weight in rubbish every month.
有44%的垃圾是由发达国家产生的；且仅在美国，平均每个人每月都要扔掉相当于他们体重重量的垃圾。