Hemocelom
[医] 围心腔(胚胎), 血腔(昆虫)
🗣️ 情景例句
No, there's more.
不，还有。
What's your wholesale price on this item?
这种产品你们的批发价是多少呢？
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。