gōng / sī / nèi / bù / wú / fēng / sān / chǐ / làng / dà / jiā / dōu / bù / zhī / dào / wèn / tí / shi / zěn / me / tū / rán / chū / xiàn / de

公司内部无风三尺浪，大家都不知道问题是怎么突然出现的。

There was unexpected trouble within the company, and no one knew how the problem had suddenly arisen.