Ectosac
[医] 外膜, 外囊(卵)
🗣️ 情景例句
That's the recreation center and restaurant.
那是娱乐中心和餐馆。
It seems to be clearing up.
看来天要放晴了。
One wonders also why Nature, with some snakes, concocted poison of such extreme potency.
然而，在脊椎动物中，大自然神秘模测地只选择了蛇（还有一种蜥蜴），人们弄不清楚大自然为什么在某些蛇的身上调制出如此高效的毒液来。