at once的近义词有：immediately, instantly, presently, directly, shortly, soon, at once, right away。下面这些副词或副词词组均有"立刻，马上"的含义：immediately：指做完一件事后，立即就做另一件事，中间一般没有明显的时间间隔。instantly：指恰恰就在此刻，一秒钟也没耽误。presently：指不久、即将。directly和immediat...
它有3对腿，每条腿上都有一只巨爪。It has three pairs of legs, each ending in a large claw.狮爪在马身一侧抓了一道深口。The lion's claws had gouged a wound in the horse's side.猫的爪很尖.Cats have sharp claws....
They do not own the land in perpetuity.他们并不是永久拥有这片土地。The perpetuity of the Church was an article of faith ( Morris L. West )教会的永恒是一种信仰的契约 ( 莫里斯L. 韦斯特 )The land was given to him in perpetuity.这土地永远归他所有了.The US Government ...
Miss Parrish recently placed an advertisement in the local news-paper.帕里什小姐最近在本埠报纸上登了一则广告。Alan Parrish: Stop giving me things that come apart.艾伦: 停下给我那些快要分裂的东西.Parrish herself and Sichuan villagers, working together in B...
炮艇朝陆地开炮.The gunboat opened fire on the mainland.我军炮艇正在破浪前进.Our gunboats are ploughing the waves.坎贝尔上尉命令舵手将船开向炮艇。Lieutenant Campbell ordered the man at the wheel to steer for the gunboat....
The structure development of coal chars under high temperature reducing conditions was studied.研究了在高温还原性条件下煤焦的孔隙结构的变化规律.The interaction force between two current elements and a pair of moving point chars is discussed.讨论了...