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》
2
They put much of their weight on the heels of their palms, which are rough and calloused.
他们把大部分的重量放在手掌的后跟部，手掌很粗糙而且很硬。
3
Burchard shaped the new material into rough - textured lightning bolts of foam that locked together to stay put under the weight of heavy, priceless objects.