回答

・What day is it?
・What day of the week?

星期幾？可以用What day is it?/What day of the week? 來表達。

What day is it today? 是"今天是星期幾？"
What's the date today? 是"今天是幾號？"的意思，
請多加留意用法。

What day of the week was the event?
『那件事是在星期幾？』

There are so many holidays this week that I am not sure what day of the week it is. What day is today?
『這週放太多假，我都不知道今天是哪一天了。今天是星期幾呢？』

以上提供給您參考。

有幫助｜0