Hemorrhoidal veins
[医] 痔静脉, 直肠静脉
🧩 词语组成解析
a. 痔的, 直肠及肛门的
n. 纹理；静脉（vein的复数）
🗣️ 情景例句
I'm afraid the cardboard boxes are not strong enough for transport by sea.
我担心这种纸箱，用于远洋运输，不够结实。
Where did you go yesterday?
你昨天去了哪里？
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。