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
He never got over it.
他一直念念不忘。
Don't tell anyone that I did it.
别说是我做的。
I agree that it is a difficult situation.
我同意，这种情况很难办。