Gastrea theory
[医] 原肠祖学说
🧩 词语组成解析
n. 原肠动物
🗣️ 情景例句
and I promised to have lunch with both of them today.
我答应今天和他们共进午餐。
I have just finished my homework.
我刚刚做完了作业。[刚刚完成的动作
But I'm learning to skate. What's the weather like in Australia?
不过我正在学溜冰。澳大利亚天气怎样？