The case against is twofold: too risky and too expensive.反对理由有两点：太冒险而且太昂贵。a twofold rise in prices价格上涨一倍The problem was twofold.这个问题分两个部分。The value of the new Cordinate Systems and surfaces is twofold.新坐标系和坐标曲面的价值是双重的....
The temperature differences between ingoing and outgoing streams of gases are higher , thus requiring more refrigeration.进出气流间的温差比较大, 因而需要较多的冷冻量.One, segregation nurses patient ingoing single room, decline visit.隔离护理患者迁入...