Monosulphide
一硫化物
🗣️ 情景例句
Richard, did you go to the Davis Aerobics class today? Richard
你去上Davis有氧运动健身课了吗？
A little wind kindles, much puts out the fire.
适可而止，过犹不及。
I'm getting a new computer for birthday present.
我得到一台电脑作生日礼物。