half brother与stepbrother,什么同父异母或同母异父,乱遭的,怎么区分它们呢?还是没有区别,随便用?

half与half of的区别 a half 与half of 的区别? a half与half a的区别 My brother e_____for half an hour every day my brother goes to bed at half past nine提问 half brother与stepbrother,什么同父异母或同母异父,乱遭的,怎么区分它们呢?还是没有区别,随便用? My mother and a half-brother and two half- sisters 谁能翻译下意思 half与half of,什么时候用half,什么时候用half of? half dead与dying区别 half the class 与half of the class的区别 one half与one-half 是一个意思吗 half an hour 与 one half hour区别 every half month与every half a month 哪个对 half Half half elder brother；eld brother；old brother 区别与意思eld brother对吗 My brother runs(for half an hour)every morning.(对括号部分提问）