4 sentences

1. 适度的体育锻炼对健康非常有益。

   shì​dù de tǐ​yù duàn​liàn duì jiàn​kāng fēi​cháng yǒu​yì.

   Moderate physical exercise is very beneficial to your health.

   Source: Dong Chinese Dictionary

2. 适当的体育锻炼有助于身体保健。

   shì​dàng de tǐ​yù duàn​liàn yǒu​zhù​yú shēn​tǐ bǎo​jiàn.

   Proper physical exercise is good for maintaining health.

   Source: Dong Chinese Dictionary

3. 长期坚持体育锻炼，可以使人的体质变强。

   cháng​qī jiān​chí tǐ​yù duàn​liàn, kě​yǐ shǐ rén de tǐ​zhì biàn qiáng.

   Persisting in physical exercise over the long term can strengthen one's constitution.

   Source: Dong Chinese Dictionary

4. 经过长期的体育锻炼，他的身体变得非常健壮。

   jīng​guò cháng​qī de tǐ​yù duàn​liàn, tā de shēn​tǐ biàn de fēi​cháng jiàn​zhuàng.

   Through long-term physical exercise, his body has become very strong.

   Source: Dong Chinese Dictionary