Ectosac
[医] 外膜, 外囊(卵)
🗣️ 情景例句
You're kidding.
在说笑吧。
Can you adapt your way of thinking to the new life-style?
你能使你的思想适应新的生活方式吗？
The doctor said he could do nothing to help him.
医生说他对此无能为力。