n. an irritating cutaneous sensation that produces a desire to scratch
v. have or perceive an itch
v. cause to perceive an itch
v. have a strong desire or urge to do something
n. 痒, 渴望, 疥疮
vi. 发痒, 渴望
1. I have an itch on my back that I can't reach.
我背上有个痒的地方我够不到。
2. Don't scratch the itch or it will get worse.
不要抓挠那个痒的地方，否则会更严重。
3. She used cream to relieve the itch from the mosquito bite.
她用药膏缓解蚊子叮咬后的痒感。