Synovial folds.
[医] 滑膜皱襞
🧩 词语组成解析
a. 滑液的, 滑膜的\\n[医] 滑液的
🗣️ 情景例句
Bye.
再见。
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
What was the population of the world in 1950?
1950年世界人口是多少？