envelope

US /ˈɑːn.və.loʊp/
UK /ˈɑːn.və.loʊp/
"envelope" picture
1.

sampul surat

a flat, usually square or rectangular, paper container with a gummed flap, used for enclosing a letter or document

:
She sealed the letter in an envelope.
Dia menyegel surat itu dalam sampul surat.
Please put the documents in a large envelope.
Sila masukkan dokumen-dokumen itu ke dalam sampul surat yang besar.
2.

selubung, lapisan

a layer or surrounding part that encloses or covers something

:
The planet is surrounded by a thick gaseous envelope.
Planet ini dikelilingi oleh selubung gas yang tebal.
The virus has a protective protein envelope.
Virus ini mempunyai selubung protein pelindung.