tract相关的词根或词缀是: tract

复数： tracts
易混淆的单词： Tract

提示：点击例句中的单词，就可以看到词义解释

They can invade the digestive tract and block nutritional uptake .

它们可以入侵消化道，然后阻止营养的摄取。

It is a sign of viral infection in the upper respiratory tract .

这是一个上呼道病毒感染的信号。

Beihe has recently decided to rent out a large tract of farmland to private investors to turn into a driving school and an auto-parts factory .

最近，北河村决定将一大片农田出租给私有投资者，建驾校和汽车部件厂。

Because contractions of the cervix and vagina during orgasm transport semen deeper into the reproductive tract .

这是因为，在高潮期间，宫颈和阴道的收缩会将精液运送到生殖道更深处。

On its journey through the gi tract the device takes pictures which are transmitted to a computer .

在它穿越胃肠道的旅程中，这个器件拍摄照片，照片被传输到电脑。