itching

例句：

1. 1.I'm itching to go hiking this weekend.
   我周末想去徒步旅行。
2. 2. She itched her skin after being in the sun all day.
   她在阳光下晒了一整天后，皮肤发痒。
3. 3. The dog itches constantly because of fleas.
   这只狗因为跳蚤而不停地抓痒。