封补英语怎么说

封补在英语中翻译为 "seal"。
这个词源于中世纪拉丁语 "sigillum"，意为印章或标志。在古代，人们用印章来封住文件或其他东西，以防止内容被拆开或更改。因此，封补在英语中通常指封住或保护东西的行为或物品。
例句：
The package had a seal on it to keep it closed and protect its contents. 包裹上有一个封补，用来保持关闭状态并保护其内容。
The jar had a tight seal to keep the food fresh. 罐子有个紧密的封补，保持食物新鲜。
The seal on the envelope indicated that it had not been opened. 信封上的封补表明它没有被打开过。