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
The news was announced to the public on TV.
这则消息经由电视向大众宣布。
An idle youth,a needy age.
少壮不努力，老大徒伤悲。
No wonder you can't sleep when you eat so much.
你吃这么多难怪睡不着。