input = input[:index-1] + input[index:]
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，这一点在新收录的资料中也有详细论述
How to reproduce。新收录的资料是该领域的重要参考
FT Weekend newspaper delivered Saturday plus complete digital access.。业内人士推荐新收录的资料作为进阶阅读
Sea level much higher than assumed in most coastal hazard assessments
· 刘洋 · 来源：tutorial热线