Sometimes really miss a certain period of time....

Sometimes really miss a certain period of time.... miss a period of 求翻译简单英语句子：faiture at a certain period of time is acceptable. over a period of time 英语翻译 over a period of time A period of time 用于什么时态 over a long period of time 是a period of time 还是times? wait for a period of time. Why silent for a period of time you owe me a period of time Sometimes feel really a lot of affection