Gunpowder was used in China as far back as the 11 th century.远在公元11世纪,中国已使用火药.A smell of gunpowder penetrated the woods.森林中弥漫着火药味.Gunpowder was introduced into Europe during the first half of the 14 th century.在14世纪上半叶,火...
Gunpowder is composed of sulfur, carbon, and potassium nitrate.火药是由硫 、 碳和硝酸钾组成.A smell of gunpowder penetrated the woods.森林中弥漫着火药味.Gunpowder was used in China as far back as the 11 th century.远在公元11世纪,中国已使用火药.Gunpowder w...
雅虎是最早且最知名的因特网目录服务网站。Yahoo is the oldest and best-known Web directory service.雅虎搜索业务的命运也尚未明朗.The destiny of Yahoo search business also have not Anacreontic.像其他公司一样, 雅虎也受到金融危机的冲击.Like other company, yahoo also gets the con...
As always, Jack was very happy to see the enchantress librarian again.同平常一样, 杰克很高兴见到这位迷人的图书管理员.He is enamoured by that enchantress.他被那个妖妇迷住了.The enchantress teach him how to turn the egg into palace, and back again.女巫们教他...
The assertion is known as the closed graph theorem for Hilbert spaces.这个断语被称为希耳伯特空间的闭图象定理.For finite - dimensional spaces determinants can be brought into play.在有限维空间中可以运用行列式.The open , needle - like spaces in the athero...
Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.在前寒武纪的最后1亿年中，两个主要的冰川时期对两个地区都产生了影响。Cubism , Abstractionism, and Pop art have all been epochs in the postrealistic era.立体派 ...