Protium
n. 三种氢的同位素中质量最轻者
🔁 扩展释义
【化】 氕【医】 氕(音撇)
🗣️ 情景例句
These are lucky kids.
这是一群幸运的孩子。
Thank you. It was very kind of you.
谢谢，您太好了。
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。