Epiblast
n. 外胚层, 上胚层\\n[医] 外胚层
🗣️ 情景例句
Hey, do you work out?
嘿，你锻炼吗？
I go out for lunch at about 12:30.
我在大约12:30去外面吃午餐。
but belongs to the air, travelling it may be six thousand miles to and from its northern nesting home, feeding its flown young as it flies,
在空中十分自如，可以飞行6，000英里，可以飞往北方做窝的老家，再从老家飞回；一边飞一边喂养会飞的雏燕，甚至在顶风时也能在气流中滑翔，似乎气流在帮它前进。