If that doesn’t function, you should attempt rebooting your tablet (push and hold the facility button right up until it restarts). In rhotic North American English there's no difference among the vowels in nurse /ˈnɜːrs/ and letter /ˈlɛtər/. For those who communicate this kind of dialect, study /ɜːr/ as /ər/. https://joanl527myh3.ouyawiki.com/user