early 15c., from un- (2) "reverse, opposite of" + seal (v.). Similar formation in Middle Dutch ontsegelen, Old High German intsigilan. Related: Unsealed (late 14c.).
实用例句
1. I ask you to unseal the bonded store.
我请求你打开保税仓库.
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2. Xy : I already know how to unseal the gate. I do not need any more experiments.
