...呈圆筒状;体表被角质膜;身体不分节(Unsegmented);具三胚层假体腔(Triploblastic pseudocoelomates)完全的消化系统(Complete gut);无呼吸和循环系统;排泄系统原肾形;神经系统简单,呈圆筒形;感觉器官不发达;多数雌雄异体异形,自由或寄生生活,分布很广。
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但与其他碳水化合物不同，我们的消化系统不能完全消化吸收膳食纤维。
However, fiber is very different from other carbohydrates, since it is not fully absorbed by our digestive system.
视频最后总结说，“尽管橡胶聚合物没能被分解，但你的身体也完全可以把这一团口香糖清除出消化系统，‘这头进那头出’，只要一两天时间。”
The video concludes 'even though you don't break down the rubber polymers, your body has no problem moving that lump of gum through your digestive system and out the other end within a day or two.
如果消化系统没有完全分解食物中的某些成分，也会产生气体。例如谷蛋白或者乳制品中的糖以及水果。
Gas can also form when your digestive system doesn't completely break down certain components in foods, such as gluten or the sugar in dairy products and fruit.
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