over the period of.and 这个句式是什么意思啊

over the period of.and 这个句式是什么意思啊 over the period是什么意思 what's the difference between'over a period of time'and 'dur over a period of a few minutes是什么意思 during the period 和over the period over a period of time over a period of five for / over the period 区别 over the same period翻译 9% dowm over the same period 是什么意思?最好再告诉我下这over的意思 the hellenistic period是什么意思 请问during the period of 126 years to 1994是什么意思?