My mother and a half-brother and two half- sisters 谁能翻译下意思

My mother and a half-brother and two half- sisters 谁能翻译下意思 two and a half My brother has been a soldier since two years and a half.(划线 two hours and a half 求翻译：We're two and a half minute into my time. half and half 什么意思? 关于two and a half man Two And A Half Men中文翻译 two is and these my sisters my that brother are some two-and-a-half years and two novels later,^^^^^^ two years and a half=two and a half years吗? two and a half hours' walk可不可以说two hours and a half's walk