hydrogen peroxide过氧化氢
hydrogen production制氢
词根:hydrogen
adj.hydrogenated 氢化的,加氢的
n.hydrogenation 加氢;[化学] 氢化作用
v.hydrogenated 使氢化(hydrogenate的过去分词)
vt.hydrogenate 使……与氢化合
3.The spokesman said, "Hydrogen bombs don't kill people — people kill people."
发言人说:“氢弹不会杀死人——人才会杀死人。”