Opercular fold
[医] 前柱褶
🧩 词语组成解析
a. [植]有蒴盖的\\nn. 鳃盖
fold
[fold]
vt. 折叠;合拢;抱住;笼罩;
vi. 折叠起来;彻底失败;
n. 折痕;信徒;羊栏;（起伏地的）凹处，洼;
🗣️ 情景例句
for coming all this way from the city to talk to me about it.
从城里大老远赶来和我谈这件事。
To err is human.
人无完人。
What will be the population of the world in the year 2000?
2000年世界人口将是多少？