I can think of no greater expression of defeatism.我想,这是我听到的最悲观的失败主义论调了.Pessimism is the eastest way of self defeatism.悲观是打败自己的最好方法.We have beaten back despair and defeatism.我们已战胜了绝望情绪和失败主义....
...a billionth of a second.十亿分之一秒UNIT NINETEENA nanometer is one billionth of a meter ( 3~4 atoms wide 2 ).一纳米即十亿分之一米 ( 可以排列三四个原子 ).The centimeter - gram - second electromagnetic unit of inductance, equal to one billiont...