Epithelial wall
[医] 上皮壁
🧩 词语组成解析
epithelial
[ˌepɪ'θi:lɪrl]
adj. 上皮的，皮膜的;
🗣️ 情景例句
There's a long way to go in reviving the countr's economy.
这个国家的经济复苏还有很长一段路要走。
Sow the wind and reap the whirlwind.
恶有恶报。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。