我们在星期五可以穿便服。

We were allowed to wear casual dress on Fridays.

《牛津词典》

自圣诞节连续工作到现在的人们星期五可以有机会放假一天。

People who had worked solidly since Christmas enjoyed the chance of a Friday off.

《柯林斯英汉双解大词典》

你星期五可以帮我代班吗？

Could you cover for me on Friday?

youdao

But we need to add in homeland security event so let's find the event for Friday of the following week.

但我们要加入国家安全的时间,那么我们可以安排到,下星期五。

普林斯顿公开课 - 国际座谈会课程节选

That's not till Friday, and last week's two lectures are both available online at cs50.net.

那些课程也是直到星期五才出来，上周的两堂课,都可以在cs50，net找到。

哈佛公开课 - 计算机科学课程节选