nǐ / kě / bié / zài / bàn gōng shì / lǐ / dāng / dà zuǐ ba / xiǎo xīn / rě huò / shàng shēn

你可别在办公室里当大嘴巴，小心惹祸上身。

You'd better not be a bigmouth in the office, or you might get yourself into trouble.