The dabbler in knowledge chatters away ; the wise man stays silent.一瓶子不响,半瓶子晃荡.He's not a dedicated musician but a dabbler.他并不是专门的音乐家，只不过是个业余家。He's not a dedicated musician, just a dabbler.他并不是专门的音乐家, 只不过是个业馀爱好...
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....
Therefore , exhibitors shall not make use of these materials before censoring.展商在审查前不可使用这些资料.First, this paper introduces the statistical inference for the exponential distribution with two parameters type - I censoring....