Eating and scratching wants But a Beginning.
越吃越想吃，越搔越想搔。
The student scratched his head before answering the question.
那个学生回答问题前搔搔头。
Scratching his head, Tom thought of a good idea.
汤姆搔搔头，想出一个好主意。
You scratch my hack and I'll scratch yours.
你替我搔背，我也就替你搔背(互相捧场)。
He scratched his arm where he had been bitten by an insect.
他搔了搔手臂上被虫叮咬过的地方。
He scratched his mosquito bites.
他搔了搔蚊子咬过的地方。
Burbo scratched his huge head, in evident embarrassment.
布耳玻显然有些为难地搔了搔大脑袋。
E-and scratching wants but a beginning.
[苏，谚]越吃越想吃，越搔越想搔。
Please scratch my back where I can't reach.
请给我背上够不着的地方搔搔痒。
He reached down and scratched his ankle again.
他又伸下手去搔一搔脚脖子。
She crawled her fingers behind my ear.
她用指头搔搔我的耳朵背后。
Stop sicking at that scab.
不要抓搔那块疮疤。
I tickled the baby's feet and made her laugh.
我搔孩子的脚，使她发笑。
I tickled him with a feather.
我用羽毛搔他的痒。
The dog had a good scratch.
那条狗好好搔了一顿痒。
To scratch(an itch).
抓痒去搔（身上的痒处）
He scratched the stump of his wrist nervously.
他紧张地搔着腕部残肢。
tickle sb in the ribs
搔某人的肋部使之发痒