1 sentence for 守住 (shǒu​zhu — keep)

1. 诚信经营是一个商人必须守住的底线。

   chéng​xìn jīng​yíng shì yī gè shāng​rén bì​xū shǒu​zhu de dǐ​xiàn.

   Operating with integrity is a bottom line that every merchant must uphold.

   Source: Dong Chinese Dictionary