falsify
verb [ T ] disapproving uk/ˈfɒl.sɪ.faɪ/ us/ˈfɑːl.sə.faɪ/
篡改，伪造（文件）
to change something, such as a document, in order to deceive people
The certificate had clearly been falsified. 这张证书很明显是伪造的。
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