

Внезапно в комнате погас свет.
Suddenly the lights went out in the room.
Он внезапно уволился и уехал из города.
He suddenly quit his job and left town.
Почему погода так внезапно изменилась?
Why did the weather change so suddenly?
"внезапно" is in the lesson "When" (Level 42), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 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.