Romain Rolland once said:罗曼·罗兰曾说： "Most men die at tenty or thirty; “很多人在20岁、30岁的时候就死了， thereafter they are only reflections of themseles， 一过这个年

日常生活中大家会遇到各类英文单词注释，是否遇到过不能理解的翻译呢？今天为大家提供探索的英文写法、探索的英语怎么说、读音、英文造句等单词解释，帮助大家提升词汇水平

Hints： Redstone, Jupiter Atlas rockets McDonnell Company The American space agency opened for business October first,1958. NASA's most important job was to send an American into space and return...