tā / bù / guǎn / sān / qī / èr / shí / yī / ná / qǐ / yào / shi / jiù / chōng / chū / le / jiā / mén

他不管三七二十一，拿起钥匙就冲出了家门。

Without thinking about the consequences, he grabbed his keys and rushed out of the house.