This shop only sells paperbacks.这家书店只出售平装本的书.Other paperbacks were selling for ten or 15 cents each.其它的平装书每本才卖十或十五美分.I have a lot of old paperbacks to sell.我有许多旧平装本书要卖....
集函数Γ作为连续统理论中的一种有用的工具是由Bellamy, D·P引入的.The set function Γ as a useful tool in continua theory was introduced by Bellamy, D.本书发现了标准微积分学的新模型 - 欧弥伽连续统模型.The second discovery is to find a new model of standard calculus - Omeg...
She let the long cone of ash hang at the end of her cigarette.她让长长的烟灰留在烟头上。The little boy is licking the ice-cream cone.小男孩在舔着冰淇淋蛋卷。…a rock about eight feet high, shaped like a truncated cone.高约八英尺，形状像锥台的岩石The design pri...
一种胶体,就其整体而言可认为不带净电荷.A sol considered as a whole cannot have a net charge.照像材料含有亲水胶体的感蓝卤化银卤剂层.The photographic elements contain a blue - sensitive hydrophilic colloid silver halide emulsion layer.胶体的弹性性质可能随着它的寿命而变化的.The e...