中央人民广播电台二套经济之声正在播出的《英语大赢家》p.268有这样一句话：
—But you can't leave with an opening door.
—I got to buy a new lock. Plus, the superintendent won't let any stranger in...
have got to 和 have to 有“不得不，必须”的意思。我没有查到 got to 有“不得不，必须”的意思。上句中 got to 是否系 have got to 之误？请解释为盼！
Collins Cobuild English Learner's Dictionary 指出“People sometimes use have got to in order to emphasize that they are certain that something is true because of the facts or circumstances involved. In informal American English, the ‘have’ is sometimes omitted.”实际上，有很多人这么用，例如：
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We'll do what we got to do. 我们要去做我们该做的事。
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I got to spend my second term at Yale as a proper law student with the heaviest class load of my stay there. (B. Clinton, My Life) 我必须作为耶鲁大学法学专业的正式学生参加第二个学期的学习，这个学期是我在那里学习负担最重的一段时间。（《我的生活》）