单词scratch-one-s-head
At times like this, one feels honour-bound to scratch one"s head.
在这种时候，人们会觉得有必要表示一下困惑。
Proper when my scratch one"s head over, paasche graceful explanation path: I am fumed by the odour of the tree.
正当我迷惑不解时，帕斯曼解释道：我是被树的气味熏倒的。