请教下面英语句子的翻译和谜底，谢谢了

请教下面英语句子的翻译和谜底，谢谢了
dear xiao mimg. I'm your present,my first letter is in the word "pay",but not in "lay" my second letter is in "tell, but not in "tall", and you can find my last letter in the word "not", but not in "lot", what am I 请问大家这些句子怎么翻译，谜底是什么，谢谢了