

Tu parles sérieusement ou tu plaisantes ?
[ty paʁl seʁjøzmɑ̃ u ty plɛzɑ̃t ?]
Are you serious or are you joking?
Il travaille sérieusement pour réussir son examen.
[il tʁavaj seʁjøzmɑ̃ puʁ ʁeysiʁ sɔ̃n‿ ɛɡzamɛ̃.]
He's working hard to pass his exam.
Sérieusement, tu as encore oublié tes clés ?
[seʁjøzmɑ̃, ty a ɑ̃kɔʁ‿ ublije te kle ?]
Seriously, you forgot your keys again?
"sérieusement" is in the lesson "Adverbs 5" (Level 41), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.