Tetrablastic
[医] 四胚层的
🗣️ 情景例句
If negotiaton fails, then what?
万一谈判破裂，怎么办？
Cheerful company shortens the miles.
旅有好旅伴，不觉行程远。
The Karen had been sailing in a convoy to Russia when she was torpedoed by an enemy submarine.
“卡伦”号当年在为其他船只护航驶往俄国的途中突然遭到敌方潜水艇鱼雷的袭击。