Ectomesoderm
外中胚层
🗣️ 情景例句
I know that.
我知道。
The devil is not so black as he is painted.
魔鬼不像所描绘的那么黑。
Jim and Li Lei meet on the road outside Li Lei's house.)
（吉姆和李垒在李垒家外面的路上相遇。）