Fifteen minus five — there are only ten days to go now.

15天刨去5天，只剩下10天了。

《新英汉大辞典》

Lauren says: "I go dancing five days a week so usually I don't ever have time to go out much afterwards."

劳伦说：“我每个礼拜都有五天要去舞蹈班，而每次跳完舞，我都没时间干别的了。”

youdao

Five days is too long to go without having a break.

五天当中没有太长时间可以休息。

youdao

Mickelson referenced that moment just five days ago when discussing his mistake to go public with being unhappy about how much he days in taxes.

WSJ: US Open to return to Winged Foot

The aim is for the force to be ready to go at five days notice - this, in military terms, is "the speed of light" as once senior officer told me.

BBC: NEWS | Europe | Nato's force for change

With two days to go and England needing another 310, Australia require five wickets to claim a victory that will level the series at 1-1.

BBC: Ashes: England must regroup, says Graham Gooch