How the word "center" is translated into English
Find the center of the circle.
[ˈfaɪnd ðə ˈsɛntər əv ðə ˈsɜrkəl.]
Put the dot in the center.
[ˈpʊt ðə ˈdɑt ˈɪn ðə ˈsɛntər.]
Where is the center of this shape?
[ˈwɛr ˈɪz ðə ˈsɛntər əv ˈðɪs ˈʃeɪp?]
"center" is in the lesson "Science" (Level 39), 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.