My neighbours and I have had enough of this sudden and deafening noise, which seems to affect our pets as well.

have 是助动词，在这里构成现在完成时态，表示"已经"。 had 是动词 have 的过去分词形式，与 have 一起构成现在完成时态，表示"经历、遭受"。 enough 是形容词，意思是"足够的、充分的"，在这里表示"受够了、无法再忍受"。 have had enough 是一个固定搭配，表示"已经受够了、无法再忍受"。