I had lunch with Joe on Thursday. 我和乔星期四一起吃了午饭。

She usually works at home on a Thursday. 她星期四通常在家工作。

The dentist’ s is closed on Thursday afternoon. 牙科诊所星期四下午不开门。

Could I make an appointment for next Thursday morning? 我能把约会定在下周四上午吗？

on Thursdays (=every Thursday) Adam has his piano lesson on Thursdays. 每周四