Blastopore
n. 胚孔, 原口
🔁 扩展释义
【医】 胚孔, 鲁斯科尼氏肛门
🗣️ 情景例句
He won't come until next week.
他下星期才会来。
It can't be helped.
无能为力。
I know. I can help him with most of his subjects.
我知道。我可以帮助他学习绝大多数科目。