

В нашей семье четыре человека.
There are four people in our family.
Мы встречаемся в четыре?
Are we meeting at four?
Сегодня у меня четыре урока.
I have four lessons today.
"четыре" is in the lesson "Numbers" (Level 3), along with 19 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.