Ectonexine
内外层
🗣️ 情景例句
OK. Since you put it this way. I'll have to comply.
好吧。既然你这么说，我只好同意了。
Nature teaches us to love our friends but religion our enemies.
自然教我们爱朋友，宗教却教我们爱敌人。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。