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1·She has an itch to travel.

她渴望旅行。《牛津词典》

2·Scratch my back – I've got an itch.

给我挠挠背–我痒痒。《柯林斯英汉双解大词典》

3·When someone has hay fever, the eyes and nose will stream and itch.

当一个人染上花粉热时，会流眼泪、流鼻涕，还会感到眼睛和鼻子发痒。《柯林斯英汉双解大词典》

4·Scratch yourself if you itch.

如果你感到痒，就搔好了。《新英汉大辞典》

5·In a common itch like a mosquito bite, cells in the skin release a chemical called histamine.

在常见的瘙痒中，比如蚊虫叮咬，皮肤细胞会释放一种叫做组胺的化学物质。

6·I itch all over.

我浑身痒。《牛津词典》

7·Scratching by itself—that is, in the absence of an itch—had no such effect.

抓挠本身——即不养时——并无这样的效果。

8·That — for those who have had an itch they can't quite reach — would be a minor medical miracle.

对于那些有某种愿望却无法实现的人来说，那将是一个小小的医学奇迹。

9·WASHINGTON - Got an itch to scratch?

华盛顿——痒了为什么要挠挠？

10·The pitch made me itch.

沥青使我发痒。

痒

1·Scratch yourself if you itch.

如果你感到痒，就搔好了。《新英汉大辞典》

2·I itch all over.

我浑身痒。《牛津词典》

3·But they could still sense and avoid pain, showing that itch and pain are processed independently.

但是，它们仍然能感受并避免疼痛，这表明老鼠的神经系统是分别处理痒和疼痛的。

4·That demonstrates that STT nerves react differently to the sensation of a scratch when it happens in response to an existing itch.

这表明，STT神经在存在瘙痒的时候对于挠痒的反应是不一样的。

5·That demonstrates that STT nerves react differently to the sensation of a scratch, when it happens in response to an existing itch.

这表明，STT神经在存在瘙痒的时候对于挠痒的反应是不一样的。

痒痒

1·Scratch my back – I've got an itch.

给我挠挠背–我痒痒。《柯林斯英汉双解大词典》

2·If ever you have felt a previously undetected itch when you notice someone else scratching, you are not alone.

看到别人抓耳挠腮，随即发现自己也有了挠痒痒的冲动，这种情况不只在你一人身上发生。

发痒

1·When someone has hay fever, the eyes and nose will stream and itch.

当一个人染上花粉热时，会流眼泪、流鼻涕，还会感到眼睛和鼻子发痒。《柯林斯英汉双解大词典》

2·Once that protection is lost, and the integrity of the skin barrier disrupted, skin becomes dry - which means it can crack, peel, itch, burn, sting, or any combination, says Crutchfield.

一旦保护层丧失，皮肤的整体屏障就受到破坏，皮肤变干——这意味着皮肤会开裂、起皮、发痒、灼痛、刺痛或各种组合的情况，“科兰驰菲尔德说。”

3·The pitch made me itch. I pitched the switch into the ditch around the kitchen.

沥青使我发痒.我把开关抛进围绕厨房的水沟里.

4·The pitch made me itch.

沥青使我发痒。

5·Jean felt her patience beginning to itch.

简感到她的耐心开始发痒。

渴望

1·He cited Ishmael's confession near the beginning of his memoir of the 1995 Bosnian peace talks, to End a War : as for me, I am tormented with an everlasting itch for things remote.

他在关于1995年波斯尼亚和谈的回忆录的开头就引用了伊希梅尔的自白，“结束战争”：“对我来说，我对遥远的事物有一种不断的渴望，这一直使我备受折磨。”

2·When you want to scream and yell, instead ITCH.

当你想要大喊大叫的时候，用渴望来替代。

(1)itch for渴望

(1)jock itch[病]股癣