always clean

The kitchen floor is always clean after I mop it.

我拖完地后，厨房地板总是干干净净的。

She keeps her desk always clean and tidy.

她总是把书桌保持得干干净净、整整齐齐。

These towels are always clean because we wash them frequently.

这些毛巾总是干干净净的，因为我们经常洗。