

Он с лёгкостью решил эту сложную задачу.
He solved this difficult problem with ease.
После разговора с мамой я почувствовала лёгкость.
After talking to my mom, I felt lighter.
Меня удивляет лёгкость, с которой она врёт.
I'm surprised by the ease with which she lies.
"лёгкость" is in the lesson "Emotions" (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.