scratch his head
英
美
- head n.头部；头脑；顶端；领袖；硬币的正面v.前进；为首；朝向adj.首要的；前面的
- his adj.他的pron.他的
- scratch v.抓；搔（痒）；划破；划掉n.抓痕；乱写；抓的声音；起跑线adj.无让步的
- Scratching his head, Tom thought of a good idea.
汤姆搔搔头，想出一个好主意。
- He was scratching his head over the question his teacher had asked him.
对老师向他提的问题，他只能抓头皮，不知如何回答。
