Proembryonic
原胚的, 胚前的
🗣️ 情景例句
without your help and your love.
要不是你的帮助和爱。
The little boy left home for his first day at school.
那个小孩第一天离开家去上学。
That is John Smith,isn't it?
你是约翰。史密斯，对吗？