Szukaj różnych nauczycieli angielski...
Vocabulary based on this video: https://www.youtube.com/watch?v=5EsICTVo2dM&ab_channel=TED-Ed
Pytanie 1 z 9

What does 'mainstay' mean?

A temporary or unimportant part of something.
A thing that is the most important or fundamental part of something.