3. If you give up exercise, your muscles shrink and fat increases. By the same token, if you expend more energy you will lose fat. 如果你放弃锻炼,肌肉就会萎缩,脂肪会增多。同样地,如果你消耗较多的体能,你就会减掉脂肪。
4. Woollen fabrics shrink in the wash. 毛织物一洗就缩水。
5. How much must we allow for the shrink? 要留多少缩水长度?