Helion
氦核, α粒子, α质点
🔁 扩展释义
【医】 氦(2号元素)
🗣️ 情景例句
A stitch in time saves nine.
亡羊补牢，犹为未晚。
I wondered if you could buy me some pencils?
我不知道你是否能替我买铅笔？
Though Mr.Thompson had turned the lights off before he went to bed, they were on in the morning.
虽然汤普森临睡觉时把灯关了，但早晨灯却都亮着。