1·They swallow stones, stones that are used to help grind up the food before it's actually digested in the stomach.
它们吞下石头，在食物在胃里消化之前，这些石头被用来帮助磨碎食物。
2·We grind up the wheat to make flour.
我们把小麦磨成面粉。
3·We grind up the wheat to make flour.
他们正在把小麦磨成面粉。
4·Earthworms grind up the soil as they eat.
蚯蚓进食时把土壤弄细。
5·Technicians then grind up the leaves to extract the protein.
然后技术人员将研磨树叶，析出蛋白质。
6·In considering chemical resistance, it is not enough to grind up the entire plant and look for allomones against insect pests.
在研究化学抗性时，研碎全株并寻找抗虫的利已激素是不够的。
7·Some sneaky cat owners actually grind up pills for their feline and put the powder on cheese or butter to get them to ingest the medicine.
一些精明的猫主人会将药片先磨碎，将药粉撒在奶酪或黄油上让猫吃下去。
8·Some packaged juice cleanses contain considerable amounts of sugar, leading some proponents to grind up their own fruit and vegetable concoctions at home.
有些包装好的排毒化果汁含有大量的糖份，这使得一些推崇者在家榨取属于他们自己的果蔬混合物。
9·We normally grind up a leaf or a root and average the information for all cells, but if sugar levels rise in one cell and drop in another, we would see no change in this average.
我们通常将植物的根和叶碾成粉末，然后平均所有细胞的成份，但是如果在单个细胞糖水平升高和降低，我们将从平均水平上是看不出来的。
10·First the big, accessible parts are removed, along with anything dangerous, and then heavy-duty shredders grind up the remainder into tiny pieces that can be sorted by standard recycling equipment.
首先拆下大的、可利用的和危险部分，然后重型粉碎机将其余部分磨碎，回收设备再按标准分类回收。