It should be clean and dry.

它应该是干净又干燥的。

youdao

Your nails should be clean.

你的指甲应该清洗干净。

youdao

Your hair should be clean and combed.

你的头发应该是清洁和梳理。

youdao

Dr.Brown says cuts should be covered with a clean,dry bandage.

VOA: special.2011.01.26

Again, this probably should be cleaned up and in a couple of weeks we'll spend a day or half period trying, to clean it up and make it somewhat more precise.

以上内容还有待梳理,未来两周我们将会花上一天半左右的时间,试着梳理这些内容,使其更加精确

耶鲁公开课 - 死亡课程节选

She says that the goods and services provided by nature - like clean air, rain or fertile soils - should not be taken for granted.

VOA: standard.2010.02.24

Make sure to have clean hands and everything your hands touch should be as clean as possible.

WSJ: Ask Teri: How to Wear False Eyelashes

The resulting dashi should be very clean in appearance and taste.

WSJ: Amaryll Schwertner's Poached Halibut in Dashi With Leeks, Sweet Potatoes and Sesame Seeds | Slow Food Fast

Bottled water often comes from the same source as tap water, where that is available (sometimes at a hundredth of the price), though it should at least be clean.

ECONOMIST: It must also be clean