2 sentences

1. 这座桥的地基打得扎扎实实的。

   zhè zuò qiáo de dì​jī dǎ de zhā​zha​shí​shí de.

   The foundation of this bridge was built very solidly.

   Source: Dong Chinese Dictionary

2. 他的工作作风一向是扎扎实实的。

   tā de gōng​zuò zuò​fēng yī​xiàng shì zhā​zha​shí​shí de.

   His work style has always been very down-to-earth.

   Source: Dong Chinese Dictionary