half that time什么意思 和half time有区别吗

half that time什么意思 和half time有区别吗 是in the half-time 还是on the half-time 还是at 他和half time half a world 和 half the world 有什么区别? half students和half of the students有什么区别 half an hour 和a half hour有什么区别? half 和 half a month有什么区别？ the half-time of the t2 effect on 什么意思 in half an hour's time什么意思 a half、the half、halves、half之间 有什么区别 at that time 和on that time、 during that time有什么区别 half and half 什么意思? at that time和at that moment 有什么区别?