

This instrument measures the temperature of the water.
[ˈðɪs ˈɪnstrəmənt ˈmɛʒərz ðə ˈtɛmprəˌtʃʊr əv ðə ˈwɔtər.]
The engineer uses special instruments to measure noise.
[ði ˌɛndʒəˈnɪr ˈjuzəz ˈspɛʃəl ˈɪnstrəmənts tə ˈmɛʒər ˈnɔɪz.]
Be careful, this instrument is very expensive.
[ˈbi ˈkɛrfəl, ˈðɪs ˈɪnstrəmənt ˈɪz ˈvɛri ɪkˈspɛnsɪv.]
"instrument" is in the lesson "Engineer" (Level 39), along with 13 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.