You chew this little capsule. Now if there's any plaque you missed, the dye will stick to it and turn your teeth blue.

Translate to Czech

Czech:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Pokud máte v puse zubní plak, barvivo uvnitř se k němu přilepí a zbarví vám zuby do modra.