Poliomyeloencephalitis

If you don't give me a better price, I won't buy this.

如果价格不更优惠些，我是不会买的。

We can dispense with that today but not tomorrow.

今天虽然可以把它免除，但是明天可就不行了。

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。