我又要开始咬指甲了。
One of my worst is my nail biting.
我最严重的坏习惯就是咬指甲。
Nail biting is often a subconscious reaction to tension.
咬指甲通常是紧张时的下意识反映。
Psychotherapists have had some theories about nail biting, of course.
当然，心理学家在咬指甲方面有许多理论。
Psychotherapists have had some theories about nail biting, of course.
当然，心理学家在咬指甲方面有许多理论。
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