“My sister was always the overachiever.”
An overachiever performs beyond expectations or is an exceptionally driven high achiever. It can be complimentary or slightly ironic. Tina describes her sister as always being the successful one.
B1-16 / CEFR B1 / EPISODE 16
Reconsidering assumptions about family
SceneTina is opening up to Frank about growing up in the shadow of her high-achieving older sister. A recent conversation with that sister surprised her.

WORDS & CONTEXT
An overachiever performs beyond expectations or is an exceptionally driven high achiever. It can be complimentary or slightly ironic. Tina describes her sister as always being the successful one.
A participation ribbon is an award given for taking part in American school events or sports, regardless of placing. Tina self-deprecatingly contrasts her sister's many certificates with her single ribbon for a race she did not even finish.
Better yet introduces an idea that improves on the previous one. Tina upgrades Frank's suggestion of sending a card to sending a certificate. Even better works similarly.