Gi tract
消化道\\n肠胃道
🧩 词语组成解析
a. 军用的；美国军人的
tract
[trækt]
n. 大片土地;（神经纤维的）束;小册子;<古>一段时间，长时间;
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
Don't be scared of him.
不要怕他。
The salvage operation had been a complete failure.
打捞工作彻底失败了。