

There's an error in this invoice.
[ˈðɛrz ən ˈɛrər ˈɪn ˈðɪs ˈɪnˌvɔɪs.]
We found several errors in last month's report.
[wi ˈfaʊnd ˈsɛvərəl ˈɛrərz ˈɪn ˈlæst ˈmənθs rɪˈpɔrt.]
Was it a human error or a system problem?
[wəz ɪt ə ˈhjumən ˈɛrər ɔr ə ˈsɪstəm ˈprɑbləm?]
"error" is in the lesson "Business 2" (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.