
it was an ACHIEVEMENT
in the field of biology.
The Big Bang Theory Season 5, Episode 12

the greatest
scientific ACHIEVEMENT
The Big Bang Theory Season 7, Episode 6

we could be looking
at a Nobel-winning ACHIEVEMENT.
The Big Bang Theory Season 12, Episode 13

If a person doesn't have a sense
of ACHIEVEMENT in their real life...
The Big Bang Theory Season 2, Episode 3

I just won't talk about the greatest
ACHIEVEMENT of my life ever again.
The Big Bang Theory Season 6, Episode 5