I agree the google translate link above pronounces this character very close to 'Arr', however do note the Pinyin (Chinese phonetic system), 'Er' starts with 'E'.
Just for the sake of discussion, here is character that starts with 'A'. See if you feel the difference.
Just for the sake of discussion, here is character that starts with 'A'. See if you feel the difference.
https://translate.google.com/#zh-CN/en/%E5%95%8A