its的意思为“它的”,复数形式为their或者theirs。its作为形容词性物主代词时,它的复数形式为their,作为名词性物主代词时,它的复数形式为theirs。 Their attitude irritates me他们的态度激怒了我。 There was a big group of a dozen people at the table next to theirs他们旁边的桌上坐了一大群人,有十几个。