Hemocelom
[医] 围心腔(胚胎), 血腔(昆虫)
🗣️ 情景例句
I'm glad you came by, Alexandra.
我很高兴你能来 Alexandra。
The petroleum region is centered largely in the north.
那里的石油区大部分集中在北部。
No, she didn't hurt herself. She was all right.
没有，她没有摔伤。她没事。