Phyloembryogenesis
胚胎系统发育
🗣️ 情景例句
What are you afraid of?
你怕什么
I'm fed up with him.
我受够他了。
Once we get down to the oil, it usually flows to the surface because great pressure,
一旦到达油层，石油就会由于地下巨大的压力流到地面上来，