Ethyl disulfide

ethyl

[化] 乙基\\n[医] 乙基

disulfide

(=disulphide) n.二硫化物

My niece is getting married,

我侄女即将结婚，

It's certainly a big improvement over yestterday.

肯定比昨天大有好转。

The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他们保存历史的唯一办法是将历史当作传说讲述，由讲述人一代接一代地将史实描述为传奇故事口传下来。