"Dry your hands with a paper towel" is how you would say "用纸巾擦干手" in Engpsh.
The phrase "paper towel" refers to a type of absorbent paper that is used for drying hands, cleaning up spills, and other household tasks. It is made from wood pulp, recycled paper, or a combination of the two.
Here are some example sentences using the phrase "paper towel" in context:
"Can you grab a roll of paper towels from under the sink? I need to dry my hands." (请你从水槽下面取一卷纸巾，我要擦干手。)
"I always keep a stack of paper towels in the kitchen for when I need to wipe down the counters." (我总是在厨房里留着一堆纸巾，以备擦拭台面的需要。)
"I spilled some coffee on the floor, can you hand me a paper towel to clean it up?" (我把咖啡洒在地上了，能给我一张纸巾帮我擦干吗？)