Tegmental tract
[医] 被盖束
🧩 词语组成解析
[医] 盖的
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
Pete wrote us and told us.
Pete写信告诉我们的。
How much is it by registered mail?
挂号信要多少钱？
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。