Mesectoderm
中外胚层
🗣️ 情景例句
Is he still in his office?
他还在办公室吗？
Her garden was most fragrance in the spring.
她家的花园到了春天芬芳四溢。
May I come in, please? I'm sorry I'm late.
我可以进来吗？对不起，我迟到了。