padded envelope
noun [ C ] /ˌpæd.ɪd ˈen.və.ləʊp/ /ˌpæd.ɪd ˈɑːn.və.loʊp/
（带保护性气泡膜的）软垫信封
an envelope with a layer of bubble wrap (= a sheet of plastic bubbles) inside, used especially for sending things that can be easily damaged
Put the whole thing in a padded envelope and send it off. 将其全部放进软垫信封里寄出。
Instead of shipping small items in boxes, use padded envelopes when possible. 如果可以的话，用软垫信封而非纸盒邮寄小型物品。
- More examples
- He urged people to remain vigilant for suspicious packages, especially padded envelopes.
- She sent it in a padded envelope by Special Delivery, insured for £500.
- But what the postman brought me was a large, padded envelope, filled with page proofs from the publisher for me to pick over.