běi / fāng / de / dōng / tiān / shí / fēn / kǔ / hán / chū / mén / shí / yí / dìng / yào / chuān / nuǎn / huo

北方的冬天十分苦寒，出门时一定要穿暖和。

Winters in the north are bitterly cold, so you must dress warmly when going out.