period什么意思?

period什么意思? for a long period 什么意思? the period considered 中 considered什么意思 Period of Confidentiality and Non-Use什么意思?RT said period 意思 time period 的意思是什么? period For mistakes had made,bad ones.什么意思呢~You must come back night. period! guarantee period:Be with you for the whole life 什么意思 your trial period willexpire in 1 days这句话什么意思 请问time和period?56 such attacks were reported in the same time period the year before.time后面还放个period,用其中一个不就完了,用两个有什么不同的意思吗? :70B:presentation period 是啥意思! study skills period 6的中文意思 the validity period的中文意思 while the proportion of women smokers in the UK remained stable at 15% during this time period.什么叫during this time period ,time 不就是时间的意思吗,period是时间段的意思吗,两个用在一起代表什么意思呢 stage, phase,period有什么区别? 还有个问题呵 warranty period 、 guarantee period 、shelf life .这三种有什么主要的区别 Your trial period has expired的中文意思