

We shouted and heard an echo from the mountains.
[wi ˈʃaʊtəd ənd ˈhɜrd ən ˈɛkoʊ frəm ðə ˈmaʊntn̩z.]
Did you hear the echo in that cave?
[ˈdɪd jə ˈhɪr ðə ˈɛkoʊ ˈɪn ˈðæt ˈkeɪv?]
The echoes of our voices filled the valley.
[ðə ˈɛkoʊz əv ɑr ˈvɔɪsəz ˈfɪld ðə ˈvæli.]
"echo" is in the lesson "Nature" (Level 38), along with 11 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.