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1·He was too inexperienced and too inexpert to succeed.

他太缺乏经验且太不熟练，难以成功。《柯林斯英汉双解大词典》

2·Inexpert official intervention can easily backfire.

官方的外行干预容易产生相反的效果。

3·It's easy to see where a friend is going wrong on Monday, but that doesn't mean you should weigh in with your inexpert advice.

在周一就可以很容易看到你的朋友将错在哪里，但这并不意味着你就应该加重你不是很熟练的建议。