开封，启封

1. opening (a letter, parcel, etc.), breaking the seal

transitive verb noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru

开箱

2. unboxing (a product)

noun or participle which takes the aux. verb suru transitive verb noun (common) (futsuumeishi)

3. unsealed mail

noun (common) (futsuumeishi)