scratch one's ear 搔耳朵
Scratching one's neck: Using one's forefinger to scratch the lower part of the ear or one side of the neck for 5 times, it shows one's doubt or lack of affirmation.
搔脖子。用手指搔耳部下方或脖子一侧，每次约搔五下，表示怀疑或不肯定。当听到与事实不符的话时，这一动作最为常见。
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