Ectoblast
n. 外胚层\\n[医] 外胚层, 外膜
🗣️ 情景例句
He goes to high school.
他在上高中。
The restaurant is across the street from the hotel.
那餐厅在饭店那边穿过马路。
Suddenly, a middle-age lady got on the train and sat opposite Sally.
突然，一个中年妇女上了火车，坐在萨莉的对面。