His mistake was due to youth and inexperience.
他失误的原因是年轻没有经验。
1.无经验,不熟练
1.lack of experience
1.The referee on Tuesday night showed a bit of inexperience, his officiating let too much slide.
周二的那位裁判的确欠缺些经验，他的执法有待商榷。
2.As a concession to her inexperience they allowed her to have some help.
他们体谅她缺乏经验，允许她获得些帮助。
3.In spite of her relative inexperience of less than two years, she is well prepared for her job.
尽管周培华在旅行社工作时间还不到两年，但她已为此做好了充分的准备。
4.The main reason for delay seems to be the inexperience or ineptitude of local officials.
而建设步伐的延误的主要原因似乎是地方行事官员的经验不足或不称职。
5.They asked too much of him and made no allowance for his inexperience.
他们对他要求太高，没有考虑到他没有经验这一点。
6.Victoria: But plenty of people will expect me to fail. And there are even more trying to take advantage of my youth and inexperience .
维多利亚：但是很多人都巴望着我失败，甚至更多人在利用我的年轻及经验的不足。
7.I chose a more mature woman, as I felt it would be easier, somehow, to confess my inexperience to her.
她看起来更成熟，因为我觉得这样比较容易向她承认自己的毫无经验。
8.Poor boy, he thought his honour required him not to take advantage of my inexperience.
可怜的孩子，他认为他的荣誉要求他不能趁机利用我的缺乏经验。
9.Youths, through inexperience of obstacles and of their own shortcomings, easily count a thing possible, and consequently are of good hope.
青年人由于对阻力和自己的缺点没有经验，很容易把事物看成是可能的，因此满怀好的希望。
10.But there are doubts about her sincerity, worries about her inexperience and a real fear that her brother may overrule her and rush home.
但是人们怀疑她是否真诚，还担心她缺乏经验，更担心其兄长会凌驾于她之上，火速回国。