its的意思為“它的”,複數形式為their或者theirs。its作為形容詞性物主代詞時,它的複數形式為their,作為名詞性物主代詞時,它的複數形式為theirs。 Their attitude irritates me他們的態度激怒了我。 There was a big group of a dozen people at the table next to theirs他們旁邊的桌上坐了一大羣人,有十幾個。