itching
n. 痒（同 itch）
v. （使）发痒；渴望（itch 的现在分词形式）
例句
I was itching to get involved.
我渴望参与。
《柯林斯英汉双解大词典》
It may be that the itching is caused by contact with irritant material.
那儿的痒也许是由于接触刺激物而引起的。
The itching was almost more than he could stand.
他痒得几乎忍不住了。
《新英汉大辞典》
