Haeckel's gastrea theory
[医] 黑克耳氏原肠祖学说
🧩 词语组成解析
n. 原肠动物
🗣️ 情景例句
I can barely move.
我简直动不了啦。
As the touchstone tries gold,so gold tries man.
试金之石可试金，正如黄金能试人。
I'm calling to see if you would like to have lunch tomorrow.
我打电话给你，是想知道明天一起吃顿中饭怎样？