Epiblastic
外胚层的
🗣️ 情景例句
I would lke to place an order please.
我要下定单。
You should be punctual for appointments.
你应该准时赴约。
We are lucky in that only the lower fields, which make up a very small proportion of our farm, are effected by flooding,
值得庆幸的是，只有低洼的受到洪水影响，而低洼地在我们农场比例很小。