Hemocoelom
[医] 围心腔(胚胎), 血腔(昆虫)
🗣️ 情景例句
It's well worth the time.
这很值得花时间。
If the pills were pleasant, they would not be gilded.
丸药不苦不会加糖衣。
When a light passenger plane flew off course some time ago, it crashed in the mountains and its pilot was killed.
不久前，一架轻型客机偏离了航线，在山区坠毁，飞行员丧生。