Видео ютуба по тегу First Day Cover Pronunciation

What's the meaning of
What's the meaning of "first-day cover", How to pronounce first-day cover?
First Day Covers
First Day Covers
First day cover Meaning
First day cover Meaning
First day covers from the Netherlands
First day covers from the Netherlands
First day cover Meaning
First day cover Meaning
what is the meaning of first day cover.
what is the meaning of first day cover.
Q.2.What is a first-day cover? Class 12
Q.2.What is a first-day cover? Class 12