běi / dǒu / qī / xīng / zhōng / de / Yù / héng / shì / biàn / rèn / xīng / zuò / shí / cháng / tí / dào / de / yì / kē / xīng

北斗七星中的玉衡是辨认星座时常提到的一颗星。

Alioth, one of the Big Dipper's seven stars, is often mentioned when identifying constellations.