He would sit back stage, watching his wife doing the bump and grind 刚才不是给翻译了么？？不过看到几个所谓的“专家‘翻译的不着边际 他会坐在后台上，看他妻子表演脱衣舞。 关键是理解do the bump and grind的意思，它是“跳脱衣舞”的意思