on sundays是什么時態標志詞

　　She always went to chapel on Sundays.

　　她總是在星期天去教堂做禮拜。

　　We're mostly out on Sundays.

　　我們星期天一般不在家。

　　On Sundays, the family went three times to chapel.

　　每到星期天，這家人都會去做3次禮拜。

　　The Council had brought proceedings to stop the store from trading on Sundays.

　　該委員會已經提起訴訟，禁止這家商店在周日營業。

　　He refuses to compete on Sundays because of his religious beliefs.

　　出于宗教信仰，他拒絕在禮拜天進行比賽。