Diproxide
二硫化二异丙基黄原酸盐(调节剂)
🗣️ 情景例句
He devoted his life to promoting world peace.
他一生致力于促进世界和平。
Do you usually lenrn Japanese on Saturday?
你通常在星期六学日文吗？
When I asked him what he was doing, he smiled guiltily and then put the parcel on the desk.
当我问他正干什么时，他内疚地笑了，然后把那个大包拿到了桌上。