Somatocoel
n. [动]原始体腔(指棘皮动物胚胎时期的体腔)
🗣️ 情景例句
There's lots of time.
时间多得很。
Well, I'm sorry you have to leave so early.
哦，很遗憾，你非得这么早走不可。
He's upstairs.He's having a bath.
他在楼上。他正在洗澡。