weekday可數嗎?

　　If you want to avoid the crowds, it's best to come on a weekday

　　如果想避免人多，最好在周一到周五來。

　　However, strictly speaking, Boxing Day is the first weekday after Christmas.

　　不過,嚴格來說,節禮日是圣誕節后的第一個工作日。

　　It means that there is no school every weekday for six hours.

　　它意味著沒有每天六個小時的學校生活。

　　At least one weekday must be selected.

　　最少要選擇一周中的一個日期。

　　That means on a weekday it must carry.

　　那就意味著平時那兒。