tennis

打網球會唔會令手腳變粗架?
Yes because muscle become strong. But no much. If compare to both arms, you will see the different.
會既話點先可以減番呢?
No sport on your arms, or do more sports on the other arm to make them same.

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打網球會唔會令手腳變粗架?
Yes, especially your front arm, but for legs, the difference is not so obvious

會既話點先可以減番呢?
may be you better do more other kinds of exercise in order to have more balance development, such as swimming which is a good exercise for the whole body