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tract

英[trækt]美[trækt]

n.
1.【生物学】（连通身体组织或器官的）道，束
2.大片土地，地带
3.（尤指宣扬宗教、伦理或政治的）短文，传单，小册子

同：	[n.] nerve pathway, pamphlet, parcel, parcel of land

So from the ancient bridge we viewed the train that hurried toward us along the other tract- kept moving, like the first, by stinging whips.
从那远古的桥上我们了望那行列，他们正在另一边向着我们走来，同样地为鞭子所驱赶着。收藏
The most common bulking agents in natural food are remnants of plant cells resistant to hydrolysis by enzymes in the alimentary tract.
天然食品中最常见的填充剂是植物细胞壁中抵抗消化道酶水解的剩余物。收藏
Dietary fiber bulking agents are important in human nutrition because they maintain normal functioning of the gastrointestinal tract.
膳食纤维填充剂在人体营养方面很重要是因为它们维持胃肠道正常的功能。收藏
Bethanechol is still used as a stimulant of the smooth muscle of the gastrointestinal tract and, particularly, the urinary bladder.
氨甲酰甲胆碱仍用作胃肠道平滑肌的兴奋剂，特别是用作膀胱平滑肌的兴奋剂。收藏
digestive tract hormones
消化道激素收藏

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