Coelomic sac
[医] 体腔
🧩 词语组成解析
体腔
sac
[sæk]
n. （动植物组织中的）囊，液囊;
abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;
🗣️ 情景例句
and from the University of Michigan in 1956.
一九五六年从Michigan大学毕业。
He was absent yesterday. Do you know why?
昨天他没到，你知道为什么吗？
There was less food for birds and also for the prairie dog, a kind of animal which lives in holes in the ground.
供鸟类吃的食物少了，供草原犬鼠（一种生活在地洞里的动物）吃的食物也少了。