unseal sth
直接宾语为被开封的物品。
The inspector unsealed the container.
检查员打开了容器的封条。
开封；开启；拆封
unsealing — present participle of unseal
拆开封条以打开(某物)；因封条被拆开而打开；使解除束缚
break the seal of
拆开封条以打开(某物)
To break the seal of (something) in order to open it.
因封条被拆开而打开
To open by having a seal broken.
一般现在时
I unseal the envelope.
我打开信封。
一般过去时
He unsealed the package.
他拆开了包裹。
She unsealed the envelope with a letter opener.
她用拆信刀拆开了信封。
用法提示：unsealed 是 unseal 的过去式，表示拆开并破坏封口。
Please unseal the yogurt container before you heat it.
加热前请先打开酸奶容器的封口。
用法提示：unseal 是祈使句中的动词原形，表示打开密封。
The technician unseals the back cover to access the battery.
技术人员打开后盖的封条以取出电池。
用法提示：unseals 是第三人称单数形式，表示解除密封。
直接宾语为被开封的物品。
The inspector unsealed the container.
检查员打开了容器的封条。
被动形式，强调动作承受者。
The document was unsealed by the court.
文件被法院启封了。
grammar · medium
易错句子The jar unsealed.
正确表达The jar was unsealed.
unseal 是及物动词，不能直接作不及物动词表示‘被开封’。应使用被动语态或改为 Someone unsealed the jar。
grammar · medium
易错句子He unsealed the notebook to write in it.
正确表达He opened the notebook to write in it.
unseal 特指开启原本被密封的东西（如信封、容器），笔记本通常没有密封，用 open 更合适。
unseal意为开封（打开封印），seal意为封口（加上封印），动作相反
unseal指物理开封（如封印），unveil指揭开幕布或公开秘密
unseal指除去封印，unlock指用钥匙或密码打开锁
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