咀嚼胃 masticatory stomach 亦称磨碎胃。系指具有咀嚼功能的特殊的胃。例如甲壳纲，特别是十足目的胃，在发生学上是前肠之一部分，因而上面覆盖着厚的几丁质层，该几丁质层在胃壁的一定部位成为显著的突起，向胃内腔突出，称为胃齿。藉肌肉的控制而磨碎胃内的食物。此外还指鸟的砂囊、寡毛纲的砂囊和昆虫的前胃等。
研究者认为，恐龙巨大的胃和强大的新陈代谢系统将帮助它们消化这么多未经咀嚼的食物。
The dinosaurs' large stomachs and powerful metabolisms would have helped them cope with so much unchewed food, the researchers believe.
如果你愿意尝尝的话，要先咬掉或者剪掉槟榔壳，然后像嚼口香糖一样咀嚼槟榔。别咽下去，而且一定要把槟榔汁吐出来，要不然你的胃可能会不舒服。
If you try it, bite or clip off the rind of the nut, then chew it like gum — don't swallow it and be sure to spit out the juice, otherwise you're likely to get sick to your stomach.
不管我怎样用劲拉缰绳，那条老母牛一点儿也不动窝。它只是站在那儿，静静地望着我，嘴里咀嚼着从胃里吐出的东西。
No matter how hard I pulled on her rope, the old cow refused to budge. She just stood there calmly gazing at me and chewing he cud.
应用推荐