窄线宽半导体激光器:《not too yung,not too old.》谁唱的？哪里有听？

《not too yung,not too old.》谁唱的？哪里有听？ not too ... to 翻译成什么？ 谢谢 Not Too Young Not Too Old的歌词 Not Too Young, Not Too Old的歌词 谢谢 it is not too later he was too angry not to say so这句帮忙翻译一下 He urges us not to be too hard on ourselves for .... ... but all only never not后加too...to的有关语法 am not ______ foolish as to believe him. A. that B.very C.too D.quite not to =never ?