In the state already infamous for razor thin margin elections and nail biting recounts.

这个州已经因为微弱的选举差距和紧张的重新计票而臭名昭著。

I do think nail biting is disgusting - but then when I'm a bit nervous I do it without thinking.

我的确认为咬指甲很不雅，但是每当我紧张的时候我就会莫名其妙地咬上了。

One of my worst is my nail biting.

我最糟糕的事情之一是咬指甲。

Stu says, " One of my worst" – meaning one of my worst habits – " is nail biting." Your " nail" (nail) is a part of your hand.

斯图说，“我最糟糕的习惯之一”——意思是我最糟糕的习惯之一——“就是咬指甲。 ” 你的“指甲” （指甲）是你手的一部分。