Cavity lining
[医] 洞衬料
🧩 词语组成解析
lining
['laɪnɪŋ]
n. 衬里，里子;衬料;衬套;
v. 排队(line的现在分词);
🗣️ 情景例句
Let's plan an after-graduation trip!
让我们计划一次毕业后的旅行！
Which one is more delicious.
哪一个是比较好吃的？
There are four seasons in the year here--spring, summer, autumn and winter.
这儿一年有四季--春、夏、秋、冬。