They observed that the clumps of roughage left behind by elephants ferrying tourists up to the fort bore a striking similarity to the rawfibre used in paper-making.
旅客可以乘坐大象前往这个港口，而二人注意到大象身后的大团粪便和造纸所用的纤维原料惊人地相似。
2
Separate the useful fibre from the rest of raw materials.
把有用的纤维从剩余的原材料中分离出来。
3
This effect is no mystery as raw plant foods are generally low calorie density high fibre foods which are very filling - ideal for weight loss - and was confirmed by a six-month trial in South Africa.