We have already wasted 20 years when we should have been developing. If we paid no attention to education,science and technology,we would waste another twenty years,and the consequences would be dreadful to contemplate.是什么意思_We have already wasted 20 years when we should have been developing. If we paid no attention to education,science and technology,we would waste another twenty years,and the consequences would be dreadful to contemplate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句